mucusyoudaoicibaDictYouDict[mucus 词源字典]
mucus: [17] Mucus was borrowed from Latin mūcus ‘nasal mucus’, which was related to two ancient verbs for ‘blow the nose’: Greek mússesthai and Latin ēmungere. The homophonic adjectival derivative mucous [17] (as in mucous membrane) comes from Latin mūcōsus. Related forms to have reached English are mucilage [14], from the late Latin derivative mūcilāgō, and moist.
=> moist, mucilage[mucus etymology, mucus origin, 英语词源]
mucus (n.)youdaoicibaDictYouDict
1660s (replacing Middle English mucilage), from Latin mucus "slime, mold, mucus of the nose, snot," from PIE root *meug- "slippery, slimy," with derivatives referring to wet or slimy substances or conditions (cognates: Latin emungere "to sneeze out, blow one's nose," mucere "be moldy or musty," Greek myssesthai "to blow the nose," myxa "mucus," mykes "fungus," Sanskrit muncati "he releases"). Old English had horh, which may be imitative.