profit: [14] Like proficient, profit goes back to Latin prōficere ‘advance, be advantageous’. This was a compound verb formed from the prefix prō- ‘forward’ and facere ‘do, make’ (source of English fact, fashion, feat, etc). Its past participle prōfectus was used as a noun meaning ‘progress, success, profit’, and this passed into English via Old French profit. The Latin present participle prōficiēns ‘making progress’ is the source of English proficient [16], which took its meaning on via ‘making progress in learning’ to ‘adept’. => fact, fashion, feat, proficient
profit (v.)
early 14c., "to advance, benefit, gain," from profit (n.) and from Old French prufiter, porfiter "to benefit," from prufit (see profit (n.)). Related: Profited; profiting.
profit (n.)
mid-13c., "income;" c. 1300, "benefit, advantage;"from Old French prufit, porfit "profit, gain" (mid-12c.), from Latin profectus "profit, advance, increase, success, progress," noun use of past participle of proficere (see proficiency). As the opposite of loss, it replaced Old English gewinn. Profit margin attested from 1853.
例文
1. You can improve your chances of profit by sensible planning.
合理的な計画を通じて利益の機会を高めることができます。
2.The group had a net profit margin of 30%last year.
昨年、このグループの純利益率は30%だった。
3.Shares slid 11 p to 293 p after brokers downgraded their profit estimates.
株式仲買人は利益予想を下げた後、株価は11ペンスから293ペンスまで下落した。
4.They are set to make a big fat profit .
彼らは大儲けすると決心した。
5.We are Making a danned good profit ，I tell you that.