[Commentaires] Article d'Arden R. Smith sur les noms de mois dans La Comté

[Thrain]

[It] derives from Old English fylleth, a word meaning something like 'fullness' or 'completion' (...) but Tolkien's own suggestion was that it referred to the ending of the preceding year after harvest-time, and the beginning of the new year with the onset of winter.

Même si "retour" est un peu éloigné, je trouve le choix compréhensible...