字根：ward- = worth
re- = back

reward [rɪˋwɔrd] n. 酬金 / v. 獎勵

rewarding adj.有益的＝remunerative；值得做的；有酬勞的
【反】drudgery ( n.苦差事 ) ---> rewarding work ( 有酬勞的工作 )

【記】源於︰reward ( v.獎賞 )