Definitions
1.noun(grammar) A mood of verbs found in some languages (e.g. Sanskrit, Old Prussian, Ancient Greek), used to express a wish. English does not have inflectional optative forms.
2.noun(grammar) A verb or expression in the optative mood.
3.adjectiveExpressing a wish or a choice.
4.adjective(grammar) Related or pertaining to the optative mood.