'partially-divided' originates from the combination of 'partial' and 'divide'. 'Partial' comes from Latin 'partialis', meaning 'pertaining to a part', and 'divide' comes from Latin 'dividere', meaning 'to separate'.

'Partial' evolved from the Latin 'partialis' through Old French 'partial', and 'divide' evolved from Latin 'dividere' through Old French 'diviser'.

Initially, 'partial' meant 'pertaining to a part', and 'divide' meant 'to separate'. Together, they describe something not fully separated.