Latin word computo comes from Latin putare, Latin con-

Detailed word origin of computo

Dictionary entry	Language	Definition
putare	Latin (lat)
con-	Latin (lat)	Used in compounds to indicate a being or bringing together of several objects. Used in compounds to indicate the completeness, perfecting of any act, and thus gives intensity to the signification of the simple word.
computo	Latin (lat)	I calculate, compute, reckon together.

Words with the same origin as computo