fossa (1)youdaoicibaDictYouDict[fossa 词源字典]
"A shallow depression or hollow", Mid 17th century: from Latin, literally 'ditch', feminine past participle of fodere 'to dig'.[fossa etymology, fossa origin, 英语词源]
fossa (2)youdaoicibaDictYouDict
"A large nocturnal reddish-brown catlike mammal of the civet family, found in the rainforests of Madagascar", Mid 19th century: from Malagasy fosa.