Where does “didolnodi” come from?

didolnodi (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.

didolnodi (Welsh): to mark with a diaeresis, to put a diaeresis on

Definitions

to mark with a diaeresis, to put a diaeresis on

Ancestry of “didolnodi”, step by step

didolnodi 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 didolnod

Step	Language	Word	Meaning
1	Welsh	didolnod	diaeresis
2	Welsh	nod	mark, brand; aim, objective, goal; node
3	English	node	A knot, knob, protuberance or swelling; The point...
4	Middle English	node	lump, swelling; knot, tie
5	Latin	nōdus	a knot (in rope)
6	Proto-Indo-European	gned-	—

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