#patronymic
- Arfenescu — A rare Romanian surname, occurring as an eponym or patronymic name derived from archaic lexical roots or phonetic modifications of names of Balkan or local origin. In a structural-onomastic sense, it belongs to the category of Romanian family names formed with the patronymic suffix '-escu', indicating filiation or ancestral descent from a clan leader or head of household named Arfen or a similar variant.
- Arsov — A proper surname of Slavic origin (frequent in Bulgaria and North Macedonia), derived as a patronymic from the given name Arso, a shortened or hypocoristic variant of the name Arsenie (Arsenios). This name identifies specific genealogical lineages within the Balkan region, periodically appearing in border records or ethnic communities in southern Romania.
- Artinescu — Romanian surname derived through patronymic suffixation from the given name or historical root Artin. It is characteristic of traditional onomastics, reflecting family lineage and being distributed across the native linguistic area as an element of civil and genealogical identification.
- Asaftel — A Romanian family name, predominantly widespread in the historical region of Moldavia, formed as a patronymic indicating direct filiation. From a structural point of view, it was created by combining the masculine given name of ecclesiastical origin 'Asaf' (derived from the Hebrew Asaph, meaning the one who gathers or collector) with the diminutive familial suffix '-el', originally indicating the son of Asaf.
- Athamantis — A patronymic name borne by Helle (or other female descendants) in Greek mythology, structurally meaning 'daughter of Athamas'. This appellation is used in ancient epic poems, such as the Argonautica, to emphasize her noble Boeotian origin in the context of the legend of her fall into the sea, a place subsequently named Hellespont.
- Son of Athamas — The articulated form of the mythological patronymic used to designate a son or male descendant of King Athamas of Boeotia, most frequently referring to Phrixus. In classical literature and Hellenic epics, this structural appellation emphasizes the dynastic origin and direct descent of the character involved in the legend of the golden fleece.
- Axenie — A Romanian surname derived from the onomastic lineage of the given name 'Axenia' or through its patronymic transformation. In a social and historical context, it reflects descent from a family line marked by a prominent ancestor or carries regional connotations linked to hospitality and cultural openness. It is a surname with moderate frequency, found particularly in specific geographical areas of the Romanian region.
- Băbuciu family name — A Romanian surname derived through suffixation from the anthroponymic root 'Babu' or 'Babă'. In the historical onomastics of the Carpatho-Danubian space, this name originates from an archaic nickname later transferred into official records, initially designating a matriarchal lineage or a man under the direct protection of an influential grandmother or midwife.