Old English gewiht, from Proto-Germanic *(ga)wekhtiz, *(ga)wekhtjan (cf. Old Norse vætt, Old Frisian wicht, Middle Dutch gewicht, German Gewicht), from *weg- (see weigh). The verb meaning "to load with weight" is attested from 1747; sense in statistics is recorded from 1901. To lose weight "get thinner" is recorded from 1961. Weight Watcher as a trademark name dates from 1960. To pull one's weight (1921) is from rowing.