To regard with deep love and respect, or to worship as divine. Often used to express intense fondness or admiration.
From Latin adorare meaning 'to pray to, worship', from ad- 'to' + orare 'to pray or speak'. Originally purely religious, the secular meaning of deep affection emerged in the 16th century.
The gesture of bringing one's hand to one's mouth when saying 'adorable' unconsciously mimics the ancient Roman practice of adoratio - kissing one's hand and extending it toward the divine as an act of worship.
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