th ▁century , ▁and ▁started ▁in ▁English . ▁. ▁ ▁Marine ▁damage ▁is ▁either ▁particular ▁average , ▁which ▁is ▁bor ne ▁only ▁by ▁the ▁owner ▁of ▁the ▁dam aged ▁property , ▁or ▁general ▁average , ▁where ▁the ▁owner ▁can ▁claim ▁a ▁proportional ▁contribution ▁from ▁all ▁the ▁parties ▁to ▁the ▁marine ▁vent ure . ▁ ▁The ▁type ▁of ▁calculations ▁used ▁in ▁adjust ing ▁general ▁average ▁gave ▁rise ▁to ▁the ▁use ▁of ▁" aver age " ▁to ▁mean ▁" ar ithmetic ▁mean ". ▁ ▁A ▁second ▁English ▁usage , ▁documented ▁as ▁early ▁as ▁ 1 6 7 4 ▁and ▁sometimes ▁sp elled ▁" aver ish ", ▁is ▁as ▁the ▁resid ue ▁and ▁second ▁growth ▁of ▁field ▁cro ps , ▁which ▁were ▁considered ▁su ited ▁to ▁consumption ▁by ▁dra ug ht ▁animals ▁(" a vers "). ▁ ▁There ▁is ▁earlier ▁( from ▁at ▁least ▁the ▁ 1 1 th ▁century ), ▁un related ▁use ▁of ▁the ▁word . ▁It ▁appears ▁to ▁be ▁an ▁old ▁legal ▁term ▁for ▁a ▁ten ant ' s ▁day ▁labour ▁oblig ation ▁to ▁a ▁sh er iff , ▁probably ▁ang lic ised ▁from ▁" aver a " ▁found ▁in ▁the ▁English ▁Dom es day ▁Book ▁( 1 0 8 5 ). ▁ ▁The ▁Oxford ▁English ▁Dictionary , ▁however , ▁says ▁that ▁deriv ations ▁from ▁German ▁ha fen ▁haven , ▁and ▁Arab ic ▁ ʿ aw âr ▁loss , ▁damage , ▁have ▁been ▁" qu ite ▁dis posed ▁of " ▁and ▁the ▁word ▁has ▁a ▁Rom ance ▁origin . ▁ ▁See ▁also ▁