'unconditioned' originates from the prefix 'un-' meaning 'not' and the word 'conditioned,' which comes from Latin 'conditio,' meaning 'agreement' or 'arrangement.'

'conditioned' evolved from the Latin word 'conditio' through Old French 'condition,' eventually becoming the modern English word 'conditioned.' The prefix 'un-' was added to form 'unconditioned.'

Initially, it meant 'not subject to conditions,' and this meaning has largely remained the same in modern usage.