What does -ei mean in Latin?

-ei, a suffix, means “Forming the dative singular.”.

How do you pronounce -ei?

In classical Latin, [e.iː]; in ecclesiastical (church) Latin, [e.i].

suffix · masculine

-ei m

Classical[e.iː]Ecclesiastical[e.i]

LatinarchaicmasculinemorphemeForming the dative singular.
Castor + -ei → Castorei
Māmars + -ei → Māmartei

What does -ei mean in Latin?: -ei, a suffix, means “Forming the dative singular.”.
How do you pronounce -ei?: In classical Latin, [e.iː]; in ecclesiastical (church) Latin, [e.i].