Seems true [0] -- as does dog. But the etymology of "boy" didn't come across as fully uncertain [1]. 0: https://en.wiktionary.org/wiki/kill https://en.wiktiona

Seems true [0] -- as does dog. But the etymology of "boy" didn't come across as fully uncertain [1]. 0: https://en.wiktionary.org/wiki/kill https://en.wiktionary.org/wiki/kill 1: https://en.wiktionary.org/wiki/boy https://en.wiktionary.org/wiki/boy