'marginally-connected' originates from the combination of 'marginally' and 'connected'. 'Marginally' comes from 'margin', which originates from Latin 'margo', meaning 'edge or border'. 'Connected' comes from Latin 'connectere', where 'con-' meant 'together' and 'nectere' meant 'to bind'.

'marginally' evolved from the Latin 'margo' through Old French 'marge', and 'connected' evolved from Latin 'connectere' through Old French 'connecter'.

Initially, 'marginally' meant 'at the edge', and 'connected' meant 'bound together'. Over time, 'marginally-connected' evolved to mean 'having a slight connection'.