'avascularity' originates from Neo-Latin/Modern English formation: the prefix 'a-' (from Greek, a privative meaning 'not') + 'vascular' (from Latin 'vasculum', diminutive of 'vas' meaning 'vessel') plus the noun-forming suffix '-ity' (from Latin '-itas').

'avascularity' developed by adding the English suffix '-ity' to the adjective 'avascular' (itself from Neo-Latin avascularis, based on Latin 'vasculum'), creating the modern English noun 'avascularity'.

Initially formed to denote 'the state of being without blood vessels' for anatomical description; it has remained a specialized medical/biological term with essentially the same meaning.