1767, "gathering statistics or doing research out-of-doors or on-site," from field (n.) + work (n.). From 1819 in reference to a type of military fortification raised by troops in the field.

1721, official stamp of purity in gold and silver articles, from Goldsmiths' Hall in London, site of the assay office; see hall + mark (n.1). General sense of "mark of quality" first recorded 1864. As a verb from 1773.

city in Mississippi, U.S., incorporated 1825, named for an early settler the Rev. Newitt Vick, who was said to have come to the region c. 1812 from Virginia with his family and chosen the town site in 1819.

"manufactured in a factory prior to assembly on site," 1937, short for prefabricated "made by assembling large components made elsewhere," originally of housing (see prefabricate). As a noun, "prefabricated housing," from 1942.

c. 1300, from Old English fealh "fallow land," from Proto-Germanic *falgo (source also of Old High German felga "harrow," German Felge "plowed-up fallow land," East Frisian falge "fallow," falgen "to break up ground"), perhaps from a derivation of PIE root *pel- (2) "to fold," hence "to turn." Assimilated since Old English to fallow (adj.), according to OED probably because of the color of plowed earth. Originally "plowed land," then "land plowed but not planted" (1520s). As an adjective, from late 14c.

mid-15c., "tillage, cultivation of large areas of land to provide food," from Late Latin agricultura "cultivation of the land," a contraction of agri cultura "cultivation of land," from agri, genitive of ager "a field" (from PIE root *agro- "field") + cultura "cultivation" (see culture (n.)). In Old English, the idea could be expressed by eorðtilþ.

Irish county, from Irish Tir Eoghain "Eoghan's Land," from Eoghan "Owen," ancestor of the O'Neills, who owned land here. Tir also forms the final syllable in Leinster, Munster, Ulster.

southeasternmost county of England, Old English Cent, Cent lond, Centrice, from Latin Cantia, Canticum (Caesar), Greek Kantion (Strabo, 51 B.C.E.), from an ancient British Celtic name often explained as "coastal district," or "corner-land, land on the edge," but possibly "land of the hosts or armies." Related: Kentish (Old English Centisc).

c. 1600, "pertaining to the Cistercian order of monks," with -an + Medieval Latin Cistercium (French Cîteaux), near Dijon, site of an abbey where the monastic order was founded 1098 by Robert of Molesme. As a noun, "monk of the Cistercian order," from 1610s.

type of porcelain, named for a town in Suffolk where it was made from 1757. The place name is "Hlothver's Toft," from genitive singular of the proper name + Old Norse toft "a building lot," also "a deserted site."