thyroidectomy

Etymology tree
Proto-Indo-European *dʰwer-der.
Proto-Hellenic *tʰurā
Ancient Greek θῠ́ρᾱ (thŭ́rā)
Ancient Greek -εος (-eos)
Ancient Greek θῠρεός (thŭreós)
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 θῠρεοειδής (thŭreoeidḗs)bor.
New Latin thyreoīdēsbor.
English thyroid
Proto-Indo-European *h₁éǵʰ
Proto-Indo-European *-s
Proto-Indo-European *h₁eǵʰs
Proto-Hellenic *eks
Ancient Greek ἐκ (ek)
Ancient Greek ἐκ- (ek-)
Proto-Indo-European *temh₁-
Proto-Indo-European *-né-
Ancient Greek τέμνω (témnō)
Ancient Greek ἐκτέμνω (ektémnō)
Ancient Greek -ᾱ (-ā)
Ancient Greek -η (-ē)
Ancient Greek ἐκτομή (ektomḗ)der.
English -ectomy
English thyroidectomy
From thyroid + -ectomy.