I was thinking the same thing.

In Lithuanian, men's names (including surname) end with a "s" sound. Women's names don't, so their surnames end with one sound if they got the surname through marriage vs through birth.

It's a crazy language because regardless of gender, you actually fuck with the person's name based on context. When you ask someone for something, you fuck with it one way. I think there are like 4 or 5 contexts where you vary the name ending.

Anyways as a result, it's very common even now to adopt a lithuanianized name (especially as a man) if you are spending time there and speaking Lithuanian... because of how much contextual information gets encoded in the name, native speakers really struggle with names incompatible with the grammatical features of the language.