witness Look up witness at Dictionary.com
O.E. witnes "attestation of fact, event, etc., from personal knowledge;" also "one who so testifies;" originally "knowledge, wit," formed from wit (n.) + -ness. The verb is c.1300, from the noun. Christian use (1382) is as a lit. translation of Gk. martys (see martyr). Witness stand is recorded from 1853.