† ˈchainageObs. [f. chain n. + -age; cf. F. chaînage.] a. A fastening with a chain; chaining. b. ? A fee due for the use of mooring-chains, etc., in a harbour. 1611Cotgr., Enchainure, a chayning..chaynage.1691T. H[ale]Acc. New Invent. p. 95 The Chainage of Ships belongs to the Admiral.