Contraction of いらっしゃって (irasshatte, “continuative of いらっしゃる (irassharu)”).

(Classical Japanese, archaic, Western Japanese) Alternative imperative of する (suru, “to do”)

one's deed / cause, reason

姿勢: posture / 市政: municipal government / 市井: the street, as in "the person on the street" / 市制: municipal organization / 死生: life and death / 刺青: tattoo / 至誠: sincerity / 四聖: the four great sages

斉次性: (algebra) homogeneity

聖なる: holy, sacred

西安: Xi'an

星団: star cluster

海象: a walrus

理性: reason; logic; rationality