From Wiktionary, the free dictionary
From a- + castaña (“chestnut”) + -au, perhaps due to their hard shell.
- IPA(key): /akastaˈɲau̯/
- Rhymes: -au̯
- Syllabification: a‧cas‧ta‧ñau
acastañau (feminine acastañá, masculine plural acastañaus, feminine plural acastañás) (Lagarteiru)
- brute, careless
- stubborn
- Valeš, Miroslav (2021) Diccionariu de A Fala: lagarteiru, mañegu, valverdeñu (web)[1], 2nd edition, Minde, Portugal: CIDLeS, published 2022, →ISBN