English
entosternum
From ento- + sternum.
Proto-Indo-European *h₁én ‘in’
Proto-Indo-European *h₁éntos
Proto-Hellenic *entós
Ancient Greek ἐντός ‘within, inside’
English ento-
Proto-Indo-European *sterh₃- ‘to be broad, spread out’
Proto-Indo-European *stér(h₃)-no-m
Ancient Greek στέρνον ‘breast, chest’
New Latin sternum ‘the breastbone’
English sternum
Today it means
noun The entoplastron.
Language periods are conventional ranges, not dates for this word.
Etymograph / entosternum