Where does “césure” come from?

césure (French) comes from Latin caesūra, from Latin caedō, from Proto-Italic kaidō, from Proto-Indo-European keh₂id-.

Ancestry of “césure”, step by step

Step	Language	Word	Meaning
1	Latin	caesūra	—
2	Latin	caedō	—
3	Proto-Italic	kaidō	to cut, to hew, to fell
4	Proto-Indo-European	keh₂id-	—

césure — Etymology, Origin & Word History | Etymology Explorer