paratracheal

Etymology tree Proto-Indo-European *per- Proto-Indo-European *preh₂- Proto-Hellenic *pərai Ancient Greek πᾰρᾰ́ (părắ) Ancient Greek πᾰρᾰ- (pără-)der. English para- 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 paratracheal From para- + tracheal.

来源：wiktionary