I know little French désolé!!
This is roman, Looking expressions and adverbs BIEN MAL Francophone Day
Answer:
Well I know, Generally, masculine nouns could ends with “o”, “us” and “son” in languages, and feminine ends with “a”. This happens with languages derived from Italic indo-european language family such as spanish, portuguese and italian.
But I'm not sure if it is the same with French.
Explanation: