hypothyroidic

Etymology tree
Proto-Indo-European *upó
Ancient Greek ῠ̔πό (hŭpó)
Ancient Greek ὑπο- (hupo-)der.
English hypo-
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
English hypothyroid
Proto-Indo-European *-ikos
Proto-Italic *-ikos
Latin -icuslbor.
Old French -iquebor.
Middle English -ik
English -ic
English hypothyroidic
From hypothyroid + -ic.