Where does “siwet” come from?

siwet (Welsh) comes from English suet, from Middle English suet, from Anglo-Norman suet, from Old French seü, from Latin sēbum, from Proto-Indo-European seyb- — to pour, leak, trickle; to pour out, trickle,...

Ancestry of “siwet”, step by step

Step	Language	Word	Meaning
1	English	suet	The fatty tissue that surrounds and protects the...
2	Middle English	suet	Alternative form of sute
3	Anglo-Norman	suet	—
4	Old French	seü	Alternative form of seu
5	Latin	sēbum	tallow, grease
6	Proto-Indo-European	seyb-	to pour, leak, trickle; to pour out, trickle,...

Every word from Proto-Indo-European seyb- →Every word from Latin sēbum →Every word from Old French seü →