Correct spelling for the English word "reptil" is [ɹˈɛptɪl], [ɹˈɛptɪl], [ɹ_ˈɛ_p_t_ɪ_l] (IPA phonetic alphabet).
The word "reptil" or "reptile" derives from the Latin word "reptilis", which means "creeping" or "crawling". It comes from the verb "reptare", meaning "to creep" or "to crawl". This Latin term refers to the characteristic mode of locomotion of reptiles, which move by dragging or crawling their bodies close to the ground. Hence, "reptil" primarily describes a particular group of creatures known for this specific type of movement.