'consistently-validated' is a modern compound formed from the adverb 'consistently' and the past participle 'validated'. 'Validate' originates from Latin, specifically the verb 'validare' (from 'validus'), where 'validus' meant 'strong' or 'effective'. 'Consistently' ultimately comes from Latin 'consistere' (con- + sistere), meaning 'to stand together' or 'to be steady.'

'validate' entered English via Medieval Latin 'validare' and Old French influences (e.g. Old French 'valider'), becoming Middle English forms such as 'validen' and then modern English 'validate'. 'Consistent' came into English from Latin 'consistere' through Old French and Middle English, and the adverbial suffix -ly produced 'consistently'. The compound 'consistently-validated' is a modern English formation used in technical and academic contexts.

Initially, Latin 'validus' conveyed strength or effectiveness, and 'validare' meant 'to make strong' or 'to confirm'. Over time, 'validate' took on the narrower modern sense 'to confirm correctness, accuracy, or legitimacy'. 'Consistently' has retained the sense of steadiness; together the compound now specifically denotes confirmation that is steady or repeatable.