c. 1300, proffren, "present oneself, appear; hand over;" mid-14c., "to make an offer or proposal," from Anglo-French profrier (mid-13c.), Old French poroffrir (11c.), from por- "forth" (from Latin pro; see pro-) + offrir "to offer," from Latin offerre (see offer (v.)). Related: Proffered; proffering. As a noun, "an offer made, something proposed for acceptance by another," from late 14c.