Where does “ond” come from?

ond (Welsh) comes from Welsh onid, from Welsh nid, from Welsh ni, from Middle Welsh ny, from Proto-Brythonic ni, from Proto-Celtic snīs, from Proto-Indo-European nō̆s — we.

ond (Welsh): but

Definitions

Ancestry of “ond”, step by step

Step	Language	Word	Meaning
1	Welsh	onid	—
2	Welsh	nid	not
3	Welsh	ni	us; we; not
4	Middle Welsh	ny	not
5	Proto-Brythonic	ni	not
6	Proto-Celtic	snīs	we
7	Proto-Indo-European	nō̆s	we

Words derived from “ond”

dim ond

Every word from Proto-Indo-European nō̆s →Every word from Proto-Celtic snīs →Every word from Proto-Brythonic ni →