Where does “gwresogi” come from?

gwresogi (Welsh) comes from Welsh i, from Middle Welsh y, from Old Welsh ir, from Proto-Celtic sindos, from Proto-Indo-European sḗm, from Proto-Indo-European sem- — together, one.

gwresogi (Welsh): to heat, to become hotter, to cause to become hotter

Definitions

to heat, to become hotter, to cause to become hotter

Ancestry of “gwresogi”, step by step

gwresogi traces back through two separate lines of ancestry.

via Welsh i

Step	Language	Word	Meaning
1	Welsh	i	I, me; to, for; that
2	Middle Welsh	y	his, its with reference to a masculine noun; triggers soft mutation of following consonant
3	Old Welsh	ir	the
4	Proto-Celtic	sindos	this
5	Proto-Indo-European	sḗm	one
6	Proto-Indo-European	sem-	together, one

via Welsh gwresog

Step	Language	Word	Meaning
1	Welsh	gwresog	(very) warm, hot

Every word from Proto-Indo-European sem- →Every word from Proto-Indo-European sḗm →Every word from Proto-Celtic sindos →