Fils
Origin
From French fils ("son").
Full definition of fils
Adjective
fils
- Used after a proper name that is common to a father and his son to indicate that the son is being referred to rather than the father.
Usage notes
Current usage of differentiating fathers and sons is borrowed from French; hence this term follows the name as it does in French grammar.
Antonyms
Noun
fils
- (rare) The son referred to in the manner of the adjective above.----