Hypertext Webster Gateway: "Flacker"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Flacker \Flack"er\, v. i. [OE. flakeren, fr. flacken to move
quickly to and fro; cf. icel. flakka to rove about, AS.
flacor fluttering, flying, G. flackern to flare, flicker.]
To flutter, as a bird. [Prov. Eng.] --Grose.
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