'abnormally-delivered' originates from the combination of 'abnormal' and 'delivered', where 'abnormal' comes from Latin 'abnormis', meaning 'deviating from the rule', and 'delivered' from Old French 'delivrer', meaning 'to set free'.

'abnormis' transformed into the English word 'abnormal', and 'delivrer' became 'deliver', eventually forming the modern English term 'abnormally-delivered'.

Initially, 'abnormal' meant 'deviating from the rule', and 'delivered' meant 'to set free'. Over time, 'abnormally-delivered' evolved to specifically refer to atypical childbirth.