Where does “vapour” come from?

vapour (Anglo-Norman) comes from Old French vapor, from Latin vapōr.

Ancestry of “vapour”, step by step

Step	Language	Word	Meaning
1	Old French	vapor	Alternative form of vapeur
2	Latin	vapōr	—

Words derived from “vapour”

Every word from Latin vapōr →

vapour — Etymology, Origin & Word History | Etymology Explorer