merge Look up merge at Dictionary.com
1636, "to plunge or sink in," from L. mergere "to dip, immerse," probably rhotacized from *mezgo, and cognate with Skt. majjati "dives under," Lith. mazgoju "to wash." Legal sense of "absorption of an estate, contract, etc. into another" is from 1726. Merger (n.) in the business sense first recorded 1889; not common until c. 1926.