Where does “サーティーン” come from?
サーティーン (Japanese) comes from English thirteen, from Middle English thirttene, from Old English þrēotīene, from Proto-Germanic þritehun, from Proto-Germanic tehun, from Proto-Indo-European déḱm̥t — ten.
サーティーン (Japanese): thirteen
Ancestry of “サーティーン”, step by step