Etymology of the English word reciprocal
the English word reciprocal
derived from the Latin word reciprocus (going backwards and forwards; ebbing)
using the Latin prefix re-
derived from the New Latin word pro-
using the Greek prefix pro-, προ- (before)
derived from the Proto-Indo-European root *per
derived from the Latin word procus (wooer, gigolo. suitor; canvasser)
derived from the Latin root *recus
