reckon

To reckon with one's host; to make an erroneous judgment in one's own favour. To cast-up one's reckoning or accounts; to vomit.

Reckon
·vi To make an enumeration or computation; to engage in numbering or computing. II. Reckon ·vt To c...

Webster's Dictionary of the English Language
to reckon
To think; to imagine; to believe; to conjecture; to conclude; to guess. Used in some parts of the Un...

Dictionary of American Words And Phrases by John Russell Bartlett.
reckon
to imagine, to suppose : I reckon I shall. North. ...

A glossary of provincial and local words used in England by Francis Grose