There are multiple origins and meanings for the name Leah:
1. Akkadian name, meaning - "cow"
2. Old English name, meaning - "meadow, clearing in a woodland, lea"
3. Hebrew given name (לאה) meaning - "weary, tired; antelope"
4. Comes from the Greek word (λεία) [lea] - "smooth".
Leah - the name of the wife of Jacob who was tricked by her father Laban into marrying her insted of her sister Rachel.