tern (n.)youdaoicibaDictYouDict[tern 词源字典]
gull-like shore bird (subfamily Sterninae), 1670s, via East Anglian dialect, from a Scandinavian source (compare Danish terne, Swedish tärna, Færoese terna) related to Old Norse þerna "tern" (also "maid-servant"), cognate with Old English stearn.[tern etymology, tern origin, 英语词源]
aglyphousyoudaoicibaDictYouDict
"Of a snake's tooth: solid and unspecialized, without a groove for venom. Of a snake: having such teeth; specifically belonging to the former division Aglypha (approximating to the large subfamily Colubrinae of harmless colubrids)", Late 19th cent. From either French aglyphe or scientific Latin Aglypha + -ous.
picineyoudaoicibaDictYouDict
"Originally: †of or relating to the former superfamily Picinae, which comprised the woodpeckers and related birds; piciform ( obsolete ). Later: of or relating to the subfamily Picinae, which comprises the typical woodpeckers", Late 19th cent.; earliest use found in Ibis: a quarterly journal of ornithology. From scientific Latin Picus, genus name + -ine, after scientific Latin Picinae, former superfamily name.
pteridoidyoudaoicibaDictYouDict
"Of a plant: (originally) †belonging or allied to the ferns ( obsolete ); (now) specifically belonging to the subfamily Pteridoideae (family Pteridaceae)", Mid 19th cent.; earliest use found in The Pall Mall Gazette. From classical Latin pterid-, pteris pteris + -oid, after scientific Latin Pteris, genus name. In later use after scientific Latin Pteridoideae, family name.