Etymograph

English

hyoplastron

Coined by Thomas Henry Huxley in 1872 as hyo- + plastron.

Formed from hyo- + plastron

Proto-Indo-European *weyd- ‘to see’

…

Ancient Greek ῡ̔οειδής ‘shaped like the letter υ (upsilon)’

Latin hȳoīdēs ‘U-shaped’

French hyoïde ‘hyoid’

English hyoid

English hyo-

Ancient Greek πλᾰ́σσω ‘to plaster’

…

Italian impiastrare ‘to plaster’

Italian piastra ‘breastplate’

Italian piastrone

French plastron

English plastron

The story

Coined by Thomas Henry Huxley in 1872 as hyo- + plastron. Superseded the earlier hyosternum, a nominalised form of the French adjective hyosternal, coined by Étienne Geoffroy Saint-Hilaire in 1818. The prefix is from Ancient Greek ῡ̔οειδής (hūoeidḗs, “shaped like the letter Υ”), ultimately from ὗ (hû, “the Greek letter upsilon”), reflecting its original description as the sternal attachment of the sternohyoid muscle (whose other attachment is on the hyoid bone).

Today it means

noun The second lateral plate in the plastron of turtles.

Language periods are conventional ranges, not dates for this word.

Etymograph / hyoplastron