(Classical Japanese) to be watching continuously, to be on watch repeatedly, to be on look out

To exhaust; deplete; use up. / serve, assist

to do to exhaustion, to do something completely

he / distal demonstrative, something far off removed from both speaker and listener: that / boyfriend

distal demonstrative, something far off removed from both speaker and listener: that, yon / particularly, male personal third person pronoun: he / by extension from he: boyfriend

he; boyfriend

square metre

a unit of area (1cm × 1cm), symbol cm², (UK) square centimetre, (US) square centimeter.

a unit of area (1km x 1km), symbol km², (UK) square kilometre, (US) square kilometer.

square root