单词 costious 释义 † costious, a. Obs.Forms: 4 costeuous [= -vous], coustouse, 5 costius, -ifous, -iose, 5–6 costious, -yous(e, -uous(e, 6 costeous.[a. AF. coustous, costeous = OF. cousteus, now coteux costly, f. cost cost n.2The forms costevous, costi...