vu'u _VUhU1 cmavo

n-ary mathematical operator: minus; subtraction operator; [(((a - b) - c) - ...)].

In notes:

cu'alvu'u: x₁ is the absolute difference of numbers x₂ and x₃ ; x₁= |x_{2 - x}
ma'oi'e: Like "ma'oi" but outputs the officially-designated/canonical sub-selma'o (if any) to which the immediately following and quoted word (cmavo) belongs, otherwise outputting the whole relevant selma'o in fashion equivalent to "ma'oi".
pau'oi: unary mathematical operator: predecessor/diminish/decrement (by one), \operatornamepred(a) = a-- = a-1
selsumji: x₁ is the difference x₂ minus x₃; x₁ is the amount that remains in substracting x₃ from x₂.
te'o'a: unary mekso operator: natural exponentiation operator exp, where exp(a) = e^{a \forall a}.
vu'ai: base-dependent digit: the maximum possible single-digit number expressible in the relevant number base.
vujnu: x₁ is the subtraction-difference of x₂ and x₃ (and x₄ etc.); x₁= x_{2 - x} [ - x₄ etc.]