The Collaborative International Dictionary of English v.0.48:

Mickle \Mic"kle\ (m[i^]k"k'l), a. [OE. mikel, muchel, mochel,
   mukel, AS. micel, mycel; akin to OS. mikil, OHG. mihil,
   mihhil, Icel. mikill, mykill, Goth. mikils, L. magnus, Gr.
   me`gas, gen. mega`loy; cf. Skr. mahat. [root]103. Cf. Much,
   Muckle, Magnitude.]
   Much; great. [Written also muckle and mockle.] [Old Eng.
   & Scot.] "A man of mickle might." --Spenser.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Mockle \Moc"kle\, a.
   See Mickle.
   [1913 Webster]