verb

• (transitive)
  "[T]he Dogge nuſling his noſe vnder the necke of the Deare, the Wolfe glad to let the Lambe lye vpon hym to kéepe him warme, the Lyon ſuffering the Aſſe to caſt hys legge ouer him: preferring one honeſt vnmannerly friende, before a number of croutching picke-thankes."
• (transitive)
  "The horse nuzzled its foal’s head gently to wake him up."
• (transitive)
• (intransitive)
  "The bird nuzzled up to the wires of the cage."

verb

• Often followed by '''up or with: to nurture or train (oneself or someone) to act a certain way, have certain beliefs, etc.
• (generally) Chiefly followed by up: to bring up (someone); to foster, to rear; also, to educate (someone); to train.
  "This onely they beſought at their hands, and admoniſhed them of, by vvay of a proviſo, they they vvould take order for the ſafetie and ſecuritie of their perſons: and not by ſheading their bloud, to fleſh the Commons, and to nuzzle them up, and acquaint them vvith exerciſing crueltie upon the Nobles and Senatours."
• (literary) To care for (someone) affectionately; to hold dear (someone); to cherish, to nurse; also, to provide (someone or something) a comfortable and snug place to settle or lie (compare etymology 1, verb sense 2.3).
  "For if Birhena could haue held him backe, / From Venus Court where he now nouſled was, / His luſtie limbes had neuer found the lacke / Of manly ſhape: […]"