Where does “Guillaspick” come from?

Guillaspick (Manx) comes from Manx aspick, from Old Irish epscop, from Latin episcopus, from Ancient Greek ἐπίσκοπος, from Ancient Greek ἐπισκοπέω, from Ancient Greek ἐπι-, from Ancient Greek ἐπί, from Ancient Greek Ἡμέρα — to be hot; to burn.

Ancestry of “Guillaspick”, step by step

Step	Language	Word	Meaning
1	Manx	aspick	bishop
2	Old Irish	epscop	bishop; episcopus, overseer
3	Latin	episcopus	an overseer, supervisor, bishop in a Christian...
4	Ancient Greek	ἐπίσκοπος	watcher, guardian; scout, watch; overseer,...
5	Ancient Greek	ἐπισκοπέω	I watch over
6	Ancient Greek	ἐπι-	on, upon, on top of, all over, covering; on,...
7	Ancient Greek	ἐπί	as well, besides; For usage in composition, see...
8	Ancient Greek	Ἡμέρα	—
9	Ancient Greek	ἦμαρ	day; by day; midday
10	Proto-Hellenic	ā́mər	—
11	Proto-Indo-European	h₂eh₃mr̥	heat
12	Proto-Indo-European	h₂eh₃-	to be hot; to burn

Every word from Proto-Indo-European h₂eh₃- →