Definition from Wiktionary, the free dictionary
suckle (plural suckles)
- (transitive) To give suck to; to nurse at the breast.
- The breasts of Hecuba When she did suckle Hector, looked not lovelier. Shakespeare
- They are not weak, suckled by Wisdom. Landor.
- (intransitive) To nurse; to suck.
Derived terms 
to give suck to