cricotracheal

Etymology tree
Ancient Greek κρίκος (kríkos)
Proto-Indo-European *weyd-
Proto-Indo-European *-os
Proto-Indo-European *wéydos
Proto-Hellenic *wéidos
Ancient Greek εἶδος (eîdos)
Proto-Indo-European *-os
Proto-Indo-European *-ēs
Ancient Greek -ης (-ēs)
Ancient Greek -ειδής (-eidḗs)
Ancient Greek κρῐκοειδής (krĭkoeidḗs)bor.
New Latin cricoīdēsbor.
English cricoid
Ancient Greek -ο- (-o-)der.
Latin -o-bor.
English -o-
English crico-
Proto-Indo-European *dʰreh₂gʰ-
Proto-Indo-European *dʰréh₂gʰ-us
Proto-Hellenic *tʰrākʰús
Ancient Greek τρᾱχεῖᾰ (trākheîă)bor.
Late Latin trāchīa
Medieval Latin trāchēader.
Middle English
English trachea
Proto-Indo-European *h₂el-der.?
Proto-Italic *-ālis
Latin -ālisbor.
Old French -albor.
▲
Latin -ālis
Old French -elbor.
▲
Latin -ālisbor.
Middle English -al
English -al
English tracheal
English cricotracheal
From crico- + tracheal.