Where does “mam-gu” come from?

mam-gu (Welsh) comes from Welsh cu, from Middle Welsh ku, from Proto-Brythonic kʉβ̃, from Proto-Celtic koimos, from Proto-Indo-European ḱóymos, from Proto-Indo-European ḱey- — to be lying down; to settle.

mam-gu (Welsh): grandmother

Definitions

grandmother

Ancestry of “mam-gu”, step by step

mam-gu traces back through two separate lines of ancestry.

via Welsh cu

Step	Language	Word	Meaning
1	Welsh	cu	dear, beloved
2	Middle Welsh	ku	—
3	Proto-Brythonic	kʉβ̃	dear, nice
4	Proto-Celtic	koimos	dear, nice
5	Proto-Indo-European	ḱóymos	of the home, belonging to the family; village,...
6	Proto-Indo-European	ḱey-	to be lying down; to settle

via Welsh mam

Step	Language	Word	Meaning
1	Welsh	mam	mother; ancestress; dam
2	Proto-Brythonic	mamm	mother, as used by a child
3	Proto-Celtic	mammā	mother, nanny, mum

Words derived from “mam-gu”

mamgu

Every word from Proto-Indo-European ḱey- →