The Collaborative International Dictionary
Suppute
Suppute \Sup*pute"\, v. t. [F. supputer, or L. supputare; sub
under + putare to reckon.]
To reckon; to compute; to suppose; to impute. [Obs.]
--Drayton.
Wiktionary
suppute
vb. (context obsolete English) To calculate; to compute; to reckon; to supputate.