前缀：con-

【词根含义】：共同,一起;加强意义

【词根来源】：用于c, d, f, g, j, n, q, s, t, v前,com-的变体。

【同源单词】：concave, conceal, concede, conceit, conceited

词根词缀：front-, fronto-

【来源及含义】Latin: forehead, brow, the forepart of anything; that which projects

【同源单词】A fronte praecipitium a tergo lupi, affront, affront, affronter, anterofrontal, arctic front