sternocleidomastoides

Latin

Etymology

From sternum (“the breastbone”) +‎ Ancient Greek κλείς (kleís, “the collarbone”) +‎ mastoīdēs (“like a breast”). Doublet of sternocleidomastoīdeus.

Pronunciation

• (modern Italianate Ecclesiastical) IPA^(key): /ster.no.kle.i.do.mas.toˈi.des/, [st̪ernokleid̪omäst̪oˈiːd̪es]

Adjective

sternocleidomastoīdēs (neuter sternocleidomastoīdes or sternocleidomastoīdēs); third-declension one-termination adjective (Greek-type) (New Latin)

1. (anatomy) Of or pertaining to the breastbone, collarbone and the mastoid process of the temporal bone; sternocleidomastoid.

Inflection

Third-declension one-termination adjective (Greek-type).

Number	Singular			Plural
Case / Gender	Masc./Fem.	Neuter		Masc./Fem.	Neuter
Nominative	sternocleidomastoīdēs	sternocleidomastoīdes1 sternocleidomastoīdēs		sternocleidomastoīdēs	sternocleidomastoīdia
Genitive	sternocleidomastoīdis			sternocleidomastoīdium
Dative	sternocleidomastoīdī			sternocleidomastoīdibus
Accusative	sternocleidomastoīdem	sternocleidomastoīdes1 sternocleidomastoīdēs		sternocleidomastoīdēs	sternocleidomastoīdia
Ablative	sternocleidomastoīdī			sternocleidomastoīdibus
Vocative	sternocleidomastoīdes1 sternocleidomastoīdēs			sternocleidomastoīdēs	sternocleidomastoīdia

¹It is unknown if Classical Latin preserved (or would have preserved) the shortness of the original Greek short ending.

Descendants

• → English: sternocleidomastoid