The word 'temptress' is a relatively modern English formation, built upon the older verb 'tempt'. The core root 'tempt' originates from Latin temptare, meaning to probe, test, or attempt, which itself may be an alteration of the older Latin tentare. This semantic core of "testing" evolved through Christian Latin to specifically mean "to test virtue or faith," leading to the sense of "enticement to sin." The feminine agent suffix '-ress' entered English via Old French -eresse, from Latin -atrix. Thus, a 'temptress' is, literally, "a female who tests or entices," a meaning that crystallized around the archetype of a dangerously seductive woman, blending the moral and sensual dimensions of temptation.

Structure: tempt (to entice) + ress (female agent suffix) - tempt: From Latin temptare (to handle, test, try, tempt), via Old French tempter. In this word, it functions as the core verb root meaning "to entice or allure." - ress: A suffix of Old French origin (-eresse), derived from Latin -atrix. It functions as a feminine agent noun suffix, equivalent to the masculine '-er' or '-or', indicating a female who performs the action of the verb.