To loiter. A corruption of miche (to skulk); whence,
micher (a thief), and michery (theft). (Old Norse, mak,
leisure; Swedish, maka; Saxon, 'mugan, to creep.) (See
Michon.)
“Shall the blessed sun of heaven prove a micher [loiterer]?”—Shakespeare: 1 Henry IV., ii. 4.
Source: Dictionary of Phrase and Fable, E. Cobham Brewer, 1894