The Collaborative International Dictionary of English v.0.48:

Noursle \Nour"sle\, v. t. [Freq., fr. OE. nourse. See Nurse.]
   To nurse; to rear; to bring up. [Obs.] [Written also nosel,
   nousel, nousle, nowsle, nusle, nuzzle, etc.]
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         She noursled him till years he raught.   --Spenser.
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