- (specialist)
the male parent of an animal, especially a horse 雄性种畜；（尤指）公种马 - (old use)
a word that people used when they addressed a king （旧时对国王的称呼）陛下
Word OriginMiddle English (in sense (2) of the noun): from Old French, from an alteration of Latin senior ‘older, older man’, comparative of senex, sen- ‘old man, old’. Sense (1) of the noun dates from the early 16th cent.