某それがしそれがしMeanings1pronounsomeone; a certain personarchaicArchaic third-person reference to an unspecified person, used in historical or samurai contexts.某それがしが参まいったと聞きいておる。I hear that someone has arrived.2pronounI; mearchaicArchaic first-person pronoun used by samurai to refer to themselves humbly or formally.某それがしが参まいります。I shall go.