What is Capias In Withernam?

Legal Definition
Practice. A writ issued after a return of elongata or eloigned has been made to a writ of retorno habendo, commanding the sheriff to take so many of the distrainer's goods by way of reprisal, as will equal the goods mentioned in the retorno habendo. 2 Inst. 140; F. N. B. 68; and see form in 2 Sell. Pr. 169.
-- Bouviers Law Dictionary
Legal Definition
A writ, in the nature of a reprisal, which lies for one whose goods or cattle, taken under a distress, are removed from the county, so that they cannot be replevied, commanding the sheriff to seize other goods or cattle of the distrainor of equal value.
-- Black's Law Dictionary