profit

Digging further, profit is derived from the Latin profectus: advance, progress, increase, growth. Hmm. Or proficere: to go forward, be useful. (source: Eat People) 利潤（profit）這個字是從拉丁文profectus而來，指進展、進步、增加、成長。嗯。或者proficere，指往前邁進、有用的。