The Collaborative International Dictionary of English v.0.48:

Knoll \Knoll\, v. t. [imp. & p. p. Knolled; p. pr. & vb. n.
   Knolling.] [OE. knollen, AS. cnyllan. See Knell.]
   To ring, as a bell; to strike a knell upon; to toll; to
   proclaim, or summon, by ringing. "Knolled to church." --Shak.
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         Heavy clocks knolling the drowsy hours.  --Tennyson.
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