'collectively-managed' originates from the combination of 'collective' and 'manage,' where 'collective' comes from the Latin word 'collectivus,' meaning 'gathered together,' and 'manage' comes from the Italian 'maneggiare,' meaning 'to handle.'

'collectivus' transformed into the French word 'collectif,' and eventually became the modern English word 'collective.' 'Maneggiare' transformed into the French word 'maneger,' and eventually became the modern English word 'manage.'

Initially, 'collective' meant 'gathered together,' and 'manage' meant 'to handle.' Over time, 'collectively-managed' evolved to mean 'managed by a group.'