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Webster 1913 Edition

Incog

In-cog′

,

adv.

Incognito.

[Colloq.]

Depend upon it – he’ll remain

incog

.

Addison.

Webster 1828 Edition

Incog

INCOG'

,

adv.

[contracted from incognito.]

In concealment; in disguise; in a manner not to be known.