c. 1400, perhaps a causative or frequentative form of Middle English suken "to suck" (see suck), but OED suggests instead a back-formation from suckling (though this word is attested only from mid-15c.). Related: Suckled; suckling.
The wetnurse suckled the infant
succumb
such
suck
sucker
suckerpunch
suckle
suckling
sucre
sucro-
sucrose
suction
