'archeologic' originates from Greek, specifically the word 'arkhaiologia' (through Medieval Latin 'archaeologia'), where 'arkhaios' meant 'ancient' and 'logos' (or 'logia') meant 'study' or 'discourse'.

'archeologic' changed from the Medieval Latin word 'archaeologicus' (and Late Latin/Old French forms) and eventually became the modern English adjective 'archeologic' (also spelled 'archaeologic' or extended as 'archeological'/'archaeological').

Initially, it meant 'pertaining to the study of ancient things', and over time it has come to specifically mean 'relating to the discipline of archaeology' in modern usage.