slakypau lujvo

p1 is a mora [linguistics]/component of syllable p2=s1 in language s2.

A syllable containing one mora is said to be monomoraic (=pavyslakypau); a syllable with two morae is said to be bimoraic (=relslakypau). Also, in rarer cases, a syllable with three morae is said to be trimoraic (=cibyslakypau).

In notes:

slakypaucibmei
m1 is trimoraic/is the mass of three morae formed from set of mora m2 whose n member(s) are m3=p1.
slakypaupavmei
m1 is monomoraic/is the mass of one morae formed from set of morae m2 whose n member(s) are m3=p1.
slakypevgra
x1 (zoi quote) is x2 moras/morae in 'weight' (default: 1) by standard x3.