† detainureObs.|dɪˈteɪnjʊə(r)| [f. detain v. + -ure: cf.OF.deteneure.] = detainer2 (of which it may be a refashioning). 1641in Rushw.Hist.Coll. (1692) iii. I. 340 Unlawful Seisure and Detainure.1710Prideaux Orig. Tithes v. 315 A Sacrilegious detainure of that which is..due unto God.