'generally-joined' originates from the combination of 'generally,' meaning 'usually' or 'commonly,' and 'joined,' meaning 'connected' or 'linked.'

'generally' and 'joined' have been used in English since the Middle Ages, with 'generally' deriving from the Latin 'generaliter' and 'joined' from the Old French 'joindre.'

Initially, 'generally' meant 'in a general manner,' and 'joined' meant 'to connect.' Together, they describe something that is usually connected.