suckle

US /ˈsʌk.əl/
UK /ˈsʌk.əl/
"suckle" picture
1.

feed (a baby or young animal) at the breast or udder

:
The mother cat began to suckle her kittens.
She would often suckle her baby in public.
2.

(of a baby or young animal) feed by sucking at the breast or udder

:
The calf began to suckle from its mother.
The infant would suckle contentedly.