clammyyoudaoicibaDictYouDict[clammy 词源字典]
clammy: [14] Etymologically, clammy means ‘sticky as if smeared with clay’. It comes from the now obsolete verb clam ‘smear, stick’. This goes back to Old English clǣman, a word of ancient ancestry: its prehistoric Germanic source was *klaimjan, a verb derived from *klaimaz ‘clay’; this was formed from the base *klai-, which is also the ultimate source of English clay and can be traced back to the Indo-European base *gloi-, *glei-, *gli-, from which English gets glue and gluten.
=> clay, glue[clammy etymology, clammy origin, 英语词源]
clammy (adj.)youdaoicibaDictYouDict
"soft and sticky," late 14c., probably from Middle English clam "viscous, sticky, muddy" (mid-14c.), from Old English clæm "mud, sticky clay," from Proto-Germanic *klaimaz "clay" (cognates: Flemish klammig, Low German klamig "sticky, damp," Old English clæman "to smear, plaster;" cognates: clay). With -y (2). Related: Clammily; clamminess.