noun
Refers to acting out of personal gain or desire, often with a negative connotation of greed or calculating behavior.
彼の行動は欲得ずくで、純粋な善意ではない。
His actions are motivated by self-interest, not pure goodwill.
欲得を捨てて、人のために尽くすことが大切だ。
It is important to set aside selfishness and devote yourself to others.
Compound of 欲 (よく, 'desire, greed') and 得 (とく, 'gain, profit'). The exact historical derivation is uncertain, but the combination naturally expresses the idea of seeking personal gain.