velvi'u lujvo

v1 is the result/remnant/remainder when v2 is removed/subtracted/deducted/taken away from v3 by v4.

Cf. vimcu.


In notes:

vozmau
x1=m4 is the excess amount by which x2=m1 exceeds x3=m2 in property/quantity x4=m3 (ka/ni).
vozme'a
x1=m4 is the amount by which x2=m1 is less than x3=m2 in property/quantity x4=m3 (ka/ni).