Beware, older languages below! The languages below were invented during Tolkien's earlier period and should be used with caution. Remember to never, ever mix words from different languages!

Gnomish

anothrin

adjective. adult (of men), fullgrown; manly

A word appearing as G. anothrin “adult (of men), fullgrown; manly” in the Gnomish Lexicon of the 1910s, an adjectival form of G. anoth “manhood†; man (fullgrown)” (GL/19).

Neo-Sindarin: I would adapt this word into Neo-Sindarin as ᴺS. anwathren “manly, masculine” as adjectival form of ᴺS. anwas “manhood”, both based on later N. anw “male (person or animal)” (Ety/ƷAN).

Cognates