-atio

Latin

Etymology

By rebracketing of words formed from first conjugation verbs, such as accūsātiō (accūsāre + -tiō), where -ā- is part of the stem.

Pronunciation

Suffix

-ātiō f

  1. Form of -tiō appended to nouns
    gradus + ‎-ātiō → ‎gradātiō

Declension

Third-declension noun.

singular plural
nominative -ātiō -ātiōnēs
genitive -ātiōnis -ātiōnum
dative -ātiōnī -ātiōnibus
accusative -ātiōnem -ātiōnēs
ablative -ātiōne -ātiōnibus
vocative -ātiō -ātiōnēs

Derived terms