亏格

亏格	kuī gé	(math.) genus
亏	kuī	to lose (money); to have a deficit / to be deficient / to treat unfairly / luckily; fortunately; thanks to / (used to introduce an ironic remark about sb who has fallen short of expectations)
格	gé	square / frame / rule / (legal) case / style / character / standard / pattern / (grammar) case / (classical) to obstruct / to hinder / (classical) to arrive / to come / (classical) to investigate / to study exhaustively