查词源字典上面是说"interpret"本身就可以当作一个词源
late 14c.,from Old French interpreter (13c.) and directly from Latin interpretari "explain,expound,understand," from interpres "agent,translator," 词源本身就是”解释”的意思
如果还要细看的话,就是inter+pret,inter的词源很简单,就是between的意思,但是pret的词源不清晰,词源字典上说后面那部分来源无法确定(uncertain orgin)
from inter- (see inter-) + second element of uncertain origin,perhaps related to Sanskrit prath- "to spread abroad," 但貌似这样没法和interpret的意思联系起来了...