cifnu -cif- gismu

x1 is an infant/baby [helpless through youth/incomplete development] of species x2.

Also infantile. See also makcu, verba.


In notes:

makcu
x1 is mature/ripe/fully-grown/adult in development-quality x2 (ka).
verba
x1 is a child/kid/juvenile [a young person] of age x2, immature by standard x3.
ckopalku
p1 is a diaper (absorbent garment) of material p2.
remyladru
l1 is human breast milk/mother's milk from human r1.