proficere (to advance, make progress, be useful),由 pro- (for, forward) + facere (to make, to do) 組成。 字根:fit- = fact- = make製造 / do做
pro- = forward。
profit [ˋprɑfɪt] n. 利潤
She makes a big profit from selling waste material to textile companies. 她將廢棄材料賣給紡織公司,從中賺取大筆利潤