Webster's Revised Unabridged Dictionary · 1913

Coy

Coy (koi) , adjective

[Old English coi quiet, still, Old French coi, coit, fromL. quietus quiet, past participle of quiescere to rest, quie rest; prob. akin to English while. See While, and compare Quiet, Quit, Quite.]

1.
Quiet; still. [Obsolete] — Chaucer
2.
Shrinking from approach or familiarity; reserved; bashful; shy; modest; -- usually applied to women, sometimes with an implication of coquetry.
Coy, and difficult to win. — Cowper
Coy and furtive graces. — W. Irving
Nor the coy maid, half willings to be pressed, Shall kiss the cup, to pass it to the rest. — Goldsmith
3.
Soft; gentle; hesitating.
Enforced hate, Instead of love's coy touch, shall rudely tear thee. — Shakespeare

Coy (koid) , transitive verb

1.
To allure; to entice; to decoy. [Obsolete]
A wiser generation, who have the art to coy the fonder sort into their nets. — Bp. Rainbow
2.
To caress with the hand; to stroke.
Come sit thee down upon this flowery bed, While I thy amiable cheeks do coy. — Shakespeare

Coy , intransitive verb

1.
To behave with reserve or coyness; to shrink from approach or familiarity. [Obsolete]
Thus to coy it, With one who knows you too! — Rowe
2.
To make difficulty; to be unwilling. [Obsolete]
If he coyed To hear Cominius speak, I 'll keep at home. — Shakespeare