Where does “full” come from?

full (Middle English) comes from Old English full, from Proto-West Germanic full, from Proto-Germanic fullaz, from Proto-Indo-European pl̥h₁nós, from Proto-Indo-European pleh₁- — to fill.

Ancestry of “full”, step by step

Step	Language	Word	Meaning
1	Old English	full	full, filled, complete, entire; a beaker; a cup,...
2	Proto-West Germanic	full	full
3	Proto-Germanic	fullaz	full; the whole, the entire
4	Proto-Indo-European	pl̥h₁nós	full
5	Proto-Indo-European	pleh₁-	to fill

Words derived from “full”

full
fuller
fullback
fulling
fullish
fullscreen
Quiverfull
fullhearted
fullcourt
nonfull
topfull
fullsib
fullage
full-timer
full-looking
full-handedness
full-time
full-handedly
full-length
full-fraught
full-faced
full-fortuned
full-bound
full-bodied

Every word from Proto-Indo-European pleh₁- →

full — Etymology, Origin & Word History | Etymology Explorer