Where does “pillhead” come from?

pillhead (English) comes from English Pill, from Welsh pil, from English Peel, from Old French piller, from Latin piliō, from Latin pilō, from Latin pila, from Latin pīlus — to grind, to crush.

pillhead (English): A person who habitually takes tranquilizers,...

Definitions

A person who habitually takes tranquilizers,...

Ancestry of “pillhead”, step by step

Step	Language	Word	Meaning
1	English	Pill	—
2	Welsh	pil	—
3	English	Peel	—
4	Old French	piller	Alternative form of pillier; pillage; plunder
5	Latin	piliō	—
6	Latin	pilō	—
7	Latin	pila	mortar; pillar; pier
8	Latin	pīlus	—
9	Latin	pīlum	—
10	Proto-Italic	pistlom	—
11	Proto-Indo-European	pis-tlo-	—
12	Proto-Indo-European	peys-	to grind, to crush

Every word from Proto-Indo-European peys- →

pillhead — Etymology, Origin & Word History | Etymology Explorer