Profitable
来自Big Physics
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Middle English: from Old French, from the verb profiter (see profit).
wiktionary
Old French profitable.
etymonline
profitable (adj.)
c. 1300, "yielding spiritual or moral benefit, useful," from profit (v.) + -able or from Old French profitable, porfitable. From mid-14c. as "advantageous, expedient, helpful." Specific sense of "money-making" is attested from 1758. Related: Profitably; profitableness.
