Etymology Explorer › Proto-Indo-European

Where does “slap-” come from?

slap- (Proto-Indo-European): to be weak, limp, languid

Definitions

to be weak, limp, languid

Words derived from “slap-”

sleep
sleeping
sleepy
sleeper
sleepiness
sleepily
sleepwalking
sleepover
sleepeth
sleepwalker
slobber
unsleeping
sleepest
oversleep
sleepyhead
sleepwalk
slobbery
sleepwear
sleepaway
presleep
sleeplike
microsleep
slabber
sleepsuit

slap- — Etymology, Origin & Word History | Etymology Explorer