Resembling, characteristic of, or suggesting a dove; gentle, peaceful, or affectionate in a soft or cooing manner.
From dove plus the diminutive/descriptive suffix -y. The term has been used since the 1500s to describe things with dove-like qualities.
The word 'dovey' survives today mainly in the clichéd phrase 'lovey-dovey'—a rhyming reduplication that's been making people groan since the 1800s!
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