'tactless' originates from 'tact,' which comes from Latin 'tactus,' meaning 'touch' or 'sense.' 'Manage' comes from Italian 'maneggiare,' meaning 'to handle.'

'tactless' evolved from the Latin 'tactus' through Old French 'tact.' 'Manage' evolved from Italian 'maneggiare' to Middle English 'managen.'

Initially, 'tactless' meant 'without touch or sense,' evolving to mean 'insensitive.' 'Manage' originally meant 'to handle,' which remains largely unchanged.