'leniently-managed' originates from the Latin word 'lenis,' meaning 'mild' or 'gentle,' combined with the English word 'manage,' which comes from the Italian 'maneggiare,' meaning 'to handle.'

'lenis' transformed into the English word 'lenient,' and 'maneggiare' became 'manage' in English, eventually forming the compound adjective 'leniently-managed.'

Initially, 'lenient' meant 'mild or gentle,' and 'manage' meant 'to handle or control.' Together, they evolved to describe a management style that is not strict.