asexuality comes from asexual (a-, 'without', + sexual) plus -ity. The prefix a- is from Ancient Greek, and sexual derives from Late Latin sexualis, from Latin sexus ('sex'). Morphologically, the word is transparent: -ity is attached to the older base named in the history, so the modern form packages an inherited or borrowed stem inside a later English derivative. In modern use, the noun sense is "the condition of lacking sexual attraction or reproductive sexual organs", which keeps the etymology connected to the word's present dictionary value rather than treating it as a merely historical label. The wider word family includes related English forms such as asexual, sexual, sexuality, sex, showing how the same base continues to support neighboring English vocabulary. The principal historical forms in the chain include Latin sexus, Ancient Greek a-, which anchor the explanation in named linguistic material.