Actually, I only looked through trig function names, because that's what he asked about specifically.
The short answer is: you'll be able to figure it out, I promise.
- In most languages the abbreviations are sin, cos, tan, sec, csc, cot.
- In Asturian, Spanish, Portuguese and Italian, they use sen instead of sin.
- In most Germanic languages it seems like they use kos and kot, but not actually in German.
- Беларуская and Hrvatski use tg and ctg instead of tan and cot. Italian and Esperanto give you this option as well.