Webster's Revised Unabridged Dictionary · 1913

Eddy

Eddy (ed"dy) , noun

[Probably from Icelandic iea; compare Icelandic pref. ie- back, Anglo-Saxon ed-, Old Saxon idug-, Old High German ita-; Gothic id-.]

1.
A current of air or water running back, or in a direction contrary to the main current.
2.
A current of water or air moving in a circular direction; a whirlpool.
And smiling eddies dimpled on the main. — Dryden
Wheel through the air, in circling eddies play. — Addison

Used also adjectively; as, eddy winds.

Eddy , intransitive verb

To move as an eddy, or as in an eddy; to move in a circle.
Eddying round and round they sink. — Wordsworth

Eddy , transitive verb

To collect as into an eddy. [Rare]
The circling mountains eddy in From the bare wild the dissipated storm. — Thomson