Group one words, which end with 'a' are usually feminine. Group two words, ending with 'us' are usually masculine, although can be neuter. In group 3, it can be any, but the neuter ones end with 'a' if plural. Not the best help, but what I know!
'This must be Thursday,' said Arthur to himself, sinking low over his beer. 'I never could get the hang of Thursdays.' — Douglas Adams, The Hitchhiker's Guide to the Galaxy
Gender:
Points: 2564
Reviews: 38