From sternum (“the breastbone”) + Ancient Greek κλείς (kleís, “the collarbone”) + mastoīdēs (“like a breast”). Doublet of sternocleidomastoīdeus.
sternocleidomastoīdēs (neuter sternocleidomastoīdes or sternocleidomastoīdēs); third-declension one-termination adjective (Greek-type) (New Latin)
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.