Where does “bia-eolaíocht” come from?

bia-eolaíocht (Irish) comes from Irish bia, from Old Irish bíad, from Proto-Celtic *beitom, from Proto-Indo-European gʷeyh₃tom, from Proto-Indo-European gʷeyh₃- — to live.

bia-eolaíocht (Irish): dietetics

Definitions

dietetics

Ancestry of “bia-eolaíocht”, step by step

bia-eolaíocht traces back through two separate lines of ancestry.

via Irish bia

Step	Language	Word	Meaning
1	Irish	bia	food; inner part of shelled, rinded, food;...
2	Old Irish	bíad	food; Alternative form of ·bïad
3	Proto-Celtic	*beitom	food
4	Proto-Indo-European	gʷeyh₃tom	—
5	Proto-Indo-European	gʷeyh₃-	to live

via Irish eolaíocht

Step	Language	Word	Meaning
1	Irish	eolaíocht	science; -logy
2	Irish	-acht	Nominal suffix, used to form abstract ideas or...
3	Old Irish	-acht	-ness, -hood; forms abstract nouns
4	Proto-Celtic	-axtā	—
5	Proto-Celtic	axtā	—

Every word from Proto-Indo-European gʷeyh₃- →Every word from Proto-Indo-European gʷeyh₃tom →Every word from Proto-Celtic *beitom →