'oddly-connected' originates from the English word 'oddly,' which means 'in a strange or unusual way,' and 'connected,' which means 'joined or linked together.'

'oddly' and 'connected' have been used in English since the Middle Ages, with 'oddly' deriving from the Old Norse word 'oddi,' meaning 'point or angle,' and 'connected' from the Latin 'connectere,' meaning 'to bind together.'

Initially, 'oddly' meant 'in a peculiar manner,' and 'connected' meant 'joined together.' The combination 'oddly-connected' retains these meanings, emphasizing an unusual linkage.