#arius
- Achaemenid — Pertaining to the Achaemenids, an ancient Persian royal dynasty founded by Achaemenes, which ruled the First Persian Empire (from the 6th to the 4th century BC) until its conquest by Alexander the Great; relating to the art, culture, architecture, or administration of this ancient dynasty. As a plural noun, it designates the members of this famous imperial family.
- Achaemenids — The members of the first great Persian imperial dynasty, founded by Achaemenes in the 7th century BC, who ruled a vast empire stretching from Egypt and Greece to India. Under the rule of illustrious monarchs like Cyrus the Great and Darius I, they created a centralized administrative system based on satrapies and left legendary architectural monuments, with the dynasty ending upon the empire's collapse to Alexander the Great.
- Apocrisiarius — An old phonetic or spelling variant found in Byzantine manuscripts and medieval Romanian legal codes for the term 'apocrisiar' (apocrisiarius). It denotes a legate, emissary, special envoy, or official diplomatic representative of a patriarch, pope, or Byzantine emperor, sent to a foreign court or another ecclesiastical see to deliver official messages or negotiate dogmatic and territorial treaties.
- Arcariu — An extremely rare, archaic, and etymological variant of the word 'arcar' or 'arcaș' (archer); a soldier from the early Middle Ages specialized in using the bow and arrows for long-range attacks. In alternative ancient administrative contexts, under Latin or Byzantine influence, the term could also designate a treasurer, cashier, or keeper responsible for managing the money chest (arca) of a community or institution.
- Arceriu — An old orthographic or regional variant for 'arcariu' or 'arcaș' (archer); a medieval soldier specialized in using the bow or a master bowmaker. In documents of Catholic or Latin influence from medieval Transylvania, it could designate a secretary, a keeper of archives, or an official responsible for guarding the administrative valuables chest.
- Arcarius — An extremely old phonetic transition form, featuring the archaic 'u' ending, utilized in early written documents or charters to designate a bowmaker or an archer. In a historical administrative sense, the term reflects the direct structural connection to the Latin etymon 'arcarius', also serving as a title for the official overseeing ranged weapon depots or managing a garrison's arsenal.
- Arian — Belonging or relating to Arianism or to the 4th-century heretical theological doctrine initiated by the priest Arius of Alexandria, which denied the full divinity of Jesus Christ and His consubstantiality with God the Father; a follower of this early Christian doctrine.
- Aryan — A woman belonging to the ancient Indo-European peoples or a female adherent of Arianism (a 4th-century theological doctrine created by Arius, which denied the consubstantial divinity of Jesus Christ with God the Father); as an adjective, it describes linguistic, cultural, or historical elements associated with these populations or medieval religious heresies.
- Arianism — An archaic, rare, or regional form of the term Arianism; an early Christian heresy propagated by the Alexandrian priest Arius, characterized by the denial of the full divinity of Jesus Christ. In old ecclesiastical texts and translated medieval chronicles, the term designated the state of dogmatic error, the political faction of the Arians, or the religious schism that divided the Byzantine Empire.
- Arianism — A 4th-century Christian theological doctrine, initiated by the priest Arius of Alexandria, which denied the consubstantiality of the Father and the Son, maintaining that Jesus Christ is not co-eternal or co-substantial with God the Father, but a distinct created being, the first and most perfect of all creation. This early heresy was officially condemned at the First Council of Nicaea in 325 AD, which established the structural dogma of the Trinity.
- Sea catfish — A popular or Romanized scientific name for fish in the genus Arius, belonging to the Ariidae family, also commonly known as sea catfishes. These fish are characterized by prominent tactile barbels around the mouth, a scaleless body protected by dense mucus, and rigid, often venomous dorsal or pectoral spines, widely distributed in tropical and subtropical marine waters and estuaries worldwide.
- Arius — A geographical proper name borne by settlements or watercourses in the Romanian territory, most notably the Ariușd village in Covasna county, archaeologically renowned for the Neolithic site belonging to the Cucuteni-Ariușd culture. In regional language, the term can also represent a hypocoristic derivative or a local archaic variant used to describe a small landform or a brook.
- Ariușd — A locality in Covasna County, Romania, which became famous within the international scientific community due to its reference archaeological site belonging to the Eneolithic Cucuteni-Ariușd culture. This cultural-geographic area represents an early and distinct manifestation of painted pottery in southeastern Transylvania, characterized by complex dwelling structures and bichrome or trichrome geometric motifs of remarkable artistic refinement.
- Avellanarius — Latin term used in modern biological taxonomy as a specific epithet in the scientific name of the hazel dormouse (Muscardinus avellanarius), a small rodent mammal of the gliridae family; the word originates etymologically from the Latin noun 'avellana' (hazelnut), making a direct reference to the animal's preferred habitat and its primary diet consisting of hazelnuts and forest berries. It is used exclusively in academic literature, zoology, ecology, and specialized guides for rigorous species identification.
- Avenarius — The surname of Richard Avenarius (1843–1896), a famous German philosopher, regarded as the founder of empiriocriticism (or the philosophy of pure experience); he formulated a theory stating that the task of philosophy is to develop a natural view of the world by eliminating metaphysical concepts from immediate human experience. His main work, 'Critique of Pure Experience', deeply influenced 20th-century epistemological debates and sparked famous counters from other scholars of the era.