Where does “fusible” come from?
fusible (Middle English) comes from Old French fusible, from Latin fusibilis, from Latin fundō, from Latin fundus, from Proto-Indo-European bʰudʰmḗn, from Proto-Indo-European dʰewbʰ-, from Proto-Indo-European dʰewh₂- — smoke; mist, haze.
Ancestry of “fusible”, step by step