'purposefully-checked' originates from the combination of 'purposefully' and 'checked', where 'purposefully' means 'with intention' and 'checked' means 'examined or verified'.

'Purposefully' comes from the word 'purpose', which evolved from the Old French 'purpos', and 'checked' comes from the Middle English 'chekken', which was derived from the Old French 'eschequier'.

Initially, 'purposefully' meant 'with a purpose', and 'checked' meant 'examined'. Together, they evolved to mean 'examined with intention'.