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Webster 1913 Edition
Flacker
Flack′er
,Verb.
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.