pronoun
Archaic first-person pronoun, historically used by people of low social status. In modern Japanese, it appears mainly in period dramas or as a dialectal/affected form.
「わっちは、ただの町人でございます」と、時代劇の登場人物が言った。
"I am but a humble townsman," said the character in the period drama.
A casual masculine first-person pronoun, commonly used among male friends or in informal settings.
Derived from 私 (わたし) through sound change; the exact historical development is uncertain.