On gloss:

curmi
x1 (agent) lets/permits/allows x2 (event) under conditions x3; x1 grants privilege x2.
xu'ai in sense "let there be"
evidential: I declare - I submit

On affix form:

gletu
x1 copulates/mates/has coitus/sexual intercourse with x2.

In definition:

ca'icru
cu1=ca1 (agent) permits/lets/allows cu2 (event) under conditions cu3, derived from authority on basis ca3.
nutcru
x1 accidentally/unintentionally lets/allows x2 (nu/za'i) to happen; x1 permits x2 (nu/za'i) without meaning to.
nutsku
x1 inadvertently says / misspeaks / blurts out / lets slip x2 to audience x3 via expressive medium x4.
toljgari
j1 lets go/releases j2 from j3 (part of j1) at locus j4 (part of j2).
varbasygauca'a
x1=c1=g1 is a ventilator letting air x2=b1=v1 flow in and expells stale air x3=b2
te'oi'i (exp!)
mekso ordered/non-commutative n-ary operator: tensor product/exterior product (of tensors); letting "@" denote the tensor product, A1 @ A2 @...@ An .
xa'ei'o (exp!)
binary mekso operator: Let the inputs X1 and X2 be sets in the same universal set O; then the result of this operator applied to them is X1^c \cup X, where for any A \subseteq O, Ac = O \setminus A.
xa'ei'u (exp!)
binary mekso operator: Let the inputs X1 and X2 be sets in the same universal set O; then the result of this operator applied to them is X1^c \cap X, where for any A \subseteq O, Ac = O \setminus A.
zau'e (exp!)
vocative: go! / come on! / get on it! / let's!
ckajida
Define x1 to be a named dummy symbol (having a name heretofore unassigned) such that, if it were to exist, it would satisfy condition/have property x2 (condition/ka); let x1 be such that it satisfies/is described by x2.
urmi
x1 lets, allows x2 to be the case.

In notes:

ficystodraunju
x1 is an injective function (distinctness-preserving function) from x2 (domain) to x3 (codomain).
ki'irgrafu
x1 is a relation space formed from elements/nodes in set x2 and relationship x3 which connects them.
nalsanji
x1 is unconscious/not aware of x2 (object/abstract).
narnonsmikemnonsmipi'i
x1 is a zero-divisor partnered with element(s) x2 in structure/ring x3, where neither x1 nor x2 is the zero(-like) element in x3
pa'adri
x1 is sad about x2 (event), which has occured contrary to their hopes.
be'ei'oi (exp!)
ternary mekso operator: x1th Bergelson multiplicative interval with exponents bounded from above by function x2 and with sequence of shifts x3, where exponents belong to set x4
bi'oi (exp!)
non-logical interval connective: ordered interval with specified endpoint/terminus x1 and signed measure/length/duration x2; interval between x1 and x1 + x according to the ordering of the space.
ci'o'au (exp!)
mekso operator (binary): projection function; the Bth term/entry ("element") of tuple A
dai'a (exp!)
attitudinal modifier: marks preceding attitudinal as empathetic with an anticipated attitude; encourages another's feelings.
fau'ai (exp!)
Iteratively applies "fau'a" to each resultant operator until all operators resolve.
fi'au
mekso operator: continued fraction, Kettenbruch notation; for ordered input (X1, X, where: X1 is an ordered pair of functions and X2 is a free or dummy variable/input/index which ranges through set X3 in order(ing) X4, the result is K(X for Kettenbruch notation K.
ji'i'u (exp!)
mekso, at-most-5-ary operator: a rounding function; ordered input list is (x,n,t,m,b) and the output is sgn(x) bt roundn (b(-t) abs(x)), with rounding preference n and where the fractional part of b(-t) abs(x) being equal to 1/2 causes the roundn ( ) function to map b(-t) abs(x) to the nearest integer of form 2Z+m, for base b (determined by context if not explicitly input) and some integer Z (determined by context).
ju'u'i
long-digit interpretation specifier; macrodigit named base specifier
kei'ai (exp!)
mekso style converter: elementwise application of operator
ma'au (exp!)
Binary mekso operator: uniform probability A(X2)u(X for input (X1,X where X1 is a number and X2 is a set or space. (See notes for details).
mai'u'au (exp!)
unary mekso operator: parity of function; if the input is a unary real-valued function X1 which is defined on a subset of the reals, then the output is 1 is X1 is even, -1 if X1 is odd, and 0 otherwise.
mu'ai'au (exp!)
mathematical/logical/mekso ternary operator: μ (mu) operator: outputs the most extreme extended-natural number that satisfies relationship/predicate A, where extremeness is bounded by B and of a version determined by C; error output is -1
rai'i (exp!)
mekso (2 or 3)-ary operator: maximum/minimum/extreme element; ordered list of extreme elements of the set underlying ordered set/structure X1 in direction X2 of list length X3 (default: 1)
sei'au
terbri editor: passes the terbri value through the quoted function so that the sumti that fills it really is filling the output of the function
su'i'e (exp!)
mekso unary operator: digital addition.
te'i'ai (exp!)
6-ary mekso/mathematical operator: Heaviside function/step/Theta function of a, of order b, in structure c, using distribution d, within approximated limit e, with value f_b at 0
te'o'a (exp!)
unary mekso operator: natural exponentiation operator exp, where exp(a) = ea \forall a.
uei'e (exp!)
attitudinal: excited encouragement
vei'u (exp!)
binary mekso operator: mod(ulus)/remainder; X1 \% X2, \,\,\, X1 (mod(X2)).
xoi'u (exp!)
non-logical connective (mekso set operator): regardless
xu'i
Echo-resumptive construction initiator: This particle immediately precedes a verb word (selbrivla) which is a repetition of a verb that already occurred in the same sentence in an outer clause level; the combination of this particle and that echo verb acts like a terminator, signaling a return to the closest clause level whose main verb was the same as the provided echo verb.
cnanfadi
x1 (li; number/quantity) is the weighted quasi-arithmetic mean/generalized f-mean of/on data x2 (completely specified ordered multiset/list) using function x3 (defaults according to the notes; if it is an extended-real number, then it has a particular interpretation according to the Notes) with weights x4 (completely specified ordered multiset/list with same cardinality/length as x2; defaults according to Notes).
cnanlagau
x1 is the generalized arithmetic-geometric mean of the elements of the 2-element set x2 (set; cardinality must be 2) of order x3 (either single extended-real number xor an unordered pair/2-element set of extended-real numbers).
cnansari
x1 is the mean-value theorem mean/forward-difference-quotient mean of the elements of (multi)set x2 (1-element or 2-element set) under/for function x3.
dikckulome
x1 is an electric charge which measures x2 (li; default: 1) coulombs by standard/under convention x3 (default: SI definition, except the charge of the proton is negative).
seplrcnite
x1 is a Dedekind cut associated with number/point x2 of totally ordered set x3
socnrpanrnji'akobi
x1 is a binary operator in structure x2 which exhibits the Jacobi property with respect to binary operator x3 (which also endows x2) and element/object x4 (which is an element of the underlying set which form x2).
srarapa
x1 is a radish-turnip hybrid of species/variety x2
tamseingu
Target node x1 and primary subject node x4 belong to the same (single) strictly-directed, connected tree graph/network/hierarchy or are related by relation scheme x5 such that x1 has coordinates (x2, x and x4 has coordinates (0, 0) according to the labelling scheme which is described in the notes hereof.
zdeltakronekre
x1 is a Kronecker delta function defined on structure x2 which evaluates to one for any argument belonging to subset x3 and which evaluates to zero otherwise