Errantly

adv. [f. ERRANT a. + -LY².] Wanderingly, at random; without definite purpose.

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1831. Carlyle, Sart. Res. (1858), 168. Into how many strange shapes, of Superstition and Fanaticism, does it not tentatively and errantly cast itself!

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1859. Chamb. Jrnl., XI. 349. The images flit … so errantly and transiently.

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