Where does “agace” come from?

agace (French) comes from Middle French agace, from Old French agace, from Frankish agattjā, from Proto-West Germanic ag-ad- ~ ag-at-, from Proto-West Germanic agu, from Proto-Germanic agō, from Proto-Indo-European h₂oḱ-éh₂, from Proto-Indo-European h₂eḱ- — sharp.

agace (French): magpie; first-person singular present indicative...

Definitions

magpie; first-person singular present indicative...

Ancestry of “agace”, step by step

agace traces back through two separate lines of ancestry.

via Middle French agace

Step	Language	Word	Meaning
1	Middle French	agace	—
2	Old French	agace	magpie
3	Frankish	agattjā	magpie
4	Proto-West Germanic	ag-ad- ~ ag-at-	—
5	Proto-West Germanic	agu	magpie
6	Proto-Germanic	agō	—
7	Proto-Indo-European	h₂oḱ-éh₂	—
8	Proto-Indo-European	h₂eḱ-	sharp

via French agacer

Step	Language	Word	Meaning
1	French	agacer	to irritate; to tease
2	Old French	aacier	—
3	Vulgar Latin	adacidare	—
4	Latin	acidare	—

Every word from Proto-Indo-European h₂eḱ- →Every word from Proto-Indo-European h₂oḱ-éh₂ →Every word from Proto-Germanic agō →