Where does “tacartheoiric” come from?

tacartheoiric (Irish) comes from Irish teoiric, from Medieval Latin theorica, from Ancient Greek θεωρική.

tacartheoiric (Irish): set theory

Definitions

Step	Language	Word	Meaning
1	Irish	teoiric	theory
2	Medieval Latin	theorica	—
3	Ancient Greek	θεωρική	—

tacartheoiric — Etymology, Origin & Word History | Etymology Explorer