Something held out to call a hawk; hence,

Any enticement; that which invites by the prospect of advantage or pleasure; as the lures of beauty or of gain.

To call hawks. Standing by one that lured loud and shrill. WWV”AD .

To entice; to attract; to invite by any thing that promises pleasure or advantage. Lured on by the pleasure of the bait. And various science lures the learned eye.