'vaguely-divided' originates from the combination of 'vaguely' and 'divided'. 'Vaguely' comes from the Latin word 'vagus', meaning 'wandering' or 'indeterminate', and 'divided' comes from the Latin 'dividere', meaning 'to separate'.

'Vaguely' evolved from the Latin 'vagus' through Old French 'vague', and 'divided' evolved from Latin 'dividere' through Old French 'diviser'.

Initially, 'vaguely' meant 'wandering' or 'indeterminate', and 'divided' meant 'to separate'. Together, they describe something not clearly separated.