traven.

Etymology: < Anglo-Norman trave beam (second half of the 12th cent., implied in travure beams collectively; in continental French only attested later: late 15th cent.), frame used to restrain a horse while it is being shod (second half of the 13th cent. or earlier) < classical Latin trabs beam, in post-classical Latin also beam of a plough (from 12th cent. in British sources), probably < the same Italic base as Oscan trííbúm (accusative singular), tríbud (ablative singular) house, tríbarakavúm to build, tríbarakkiuf building, Umbrian trebeit (3rd person singular present) he lives, dwells < the same Indo-European base as thorp n.With sense 1a compare post-classical Latin trava frame or enclosure for restraining a horse while it is shod (from 1246 in British sources), and also trevis n. 1. Compare also Middle French, French entrave clog, fetter, shackle (c1260 in Old French), which is < entraver to hinder, restrain (end of the 12th cent.; either < en- en- prefix¹ + Old French, Middle French tref beam (see below), or < Old Occitan entravar to hinder, entrammel (although this is first attested later: c1220; < en- en- prefix¹ + trau beam)). With sense 2 compare Old French, Middle French, French †tref (12th cent.; 11th cent. in Rashi as trev ), Old Occitan trau (12th cent.), Portuguese trave , Italian trave (both 13th cent.), in the same sense, and post-classical Latin trava beam of a plough (from 1297 in British sources). It is unclear whether the following earlier example (in sense 2) in a Latin context should be taken as showing the Middle English or the Anglo-Norman word:a1395 in Archaeologia (1832) 24 313 Pro cariagio de ij traves pro justes de hospicio.