surge (n.) Look up surge at
late 15c., "fountain, stream," of uncertain origin, probably from Middle French sourge-, stem of sourdre "to rise, swell," from Latin surgere "to rise, arise, get up, mount up, ascend; attack," contraction of surrigere, from assimilated form of sub "up from below" (see sub-) + regere "to keep straight, guide" (see regal). Meaning "high, rolling swell of water" is from 1520s; figurative sense of "excited rising up" (as of feelings) is from 1510s.
surge (v.) Look up surge at
1510s, "to rise and fall," from surge (n.), or from Middle French surgir "rise, ride (as a ship does a wave), spring up, arrive." Meaning "rise high and roll forcefully" is from 1560s. Related: Surged; surging.