molselpu'u lujvo

x1=s2 is saliva/sput/sputum/spittle of x2=s1.

Cf. kalselvi'i.


In notes:

kalselvi'i
x1=v2 is a tear/tear fluid of x2=v1.
molylitki
x1 is saliva of organism x2
sputu
x1 spits/expectorates x2 [predominantly liquid] from x3 to/onto x4.