#orthodox
- Archprelate — A member of the higher clergy in the Christian Orthodox Church who has received through the sacrament of holy orders the fullness of priestly grace, holding the canonical right to consecrate and to spiritually govern a diocese; a generic term used to denote hierarchs of any higher rank, such as bishops, archbishops, metropolitans, or patriarchs. In theology, the archprelate is viewed as a direct successor of the holy apostles and as the mystical representative of Jesus Christ, the High Priest, in the midst of the community.
- Archistrategos — A solemn religious title granted in the Eastern Christian tradition to the Holy Archangels (especially to Archangel Michael), viewed as the leaders or glorious commanders of the angelic hosts and the spiritual defenders of the faithful in the fight against demonic forces. The term preserves the Slavic-Byzantine phonetic path and holds a strong liturgical weight, being frequently used in akathists, prayers, and official hagiographies.
- Guestmaster — A monk or designated person in an Orthodox monastery responsible for receiving, lodging, and entertaining pilgrims or distinguished guests. Historically, the term also referred to a low-ranking boyar or court official tasked with the logistics of receiving strangers or important envoys.
- Monastery guesthouse — A building, wing, or quarters specially arranged within an Orthodox monastery complex, intended exclusively for the free lodging, rest, and dining of pilgrims, visitors, or guests.
- Monastery guest house — A building, wing, or block of houses located within an Orthodox monastery or a boyar residence, specially arranged for the lodging, rest, and free hospitality of visitors, pilgrims, or distinguished guests. In an institutional sense, it represents the reception and protocol service managed by an archondar.
- Guest-master — A monk or individual officially designated in an Orthodox monastery (especially following the Mount Athos model) who fulfills the duties of a host, bearing the structural responsibility to receive pilgrims and guests, assign accommodation cells, and arrange meals under Christian hospitality. This monastic obedience is essential for the smooth interaction between the secluded community and the outside world.
- Monastery guest house — A phonetic and regional variant of arhondărie; a building, wing, or block of houses located within an Orthodox monastery or a boyar residence, specially arranged for the lodging, rest, and free hospitality of pilgrims and distinguished guests. This space symbolizes traditional monastic hospitality and is managed directly by an archondar or archontar.
- Arnota — A historic Romanian Orthodox monastery located in Vâlcea County, founded between 1633 and 1634 by Prince Matei Basarab. Situated at an isolated altitude on the mountain of the same name, it houses the tomb of its founder and highly valuable interior frescoes.
- Artos — Leavened bread consecrated during the liturgical service of Holy Saturday or Lity, symbolizing Jesus Christ as the Bread of Life; ritual bread. In Eastern Orthodox tradition, this bread is stamped with the seal of the Resurrection and distributed to the faithful following a specific rite, being regarded as a source of spiritual blessing.
- Ash'arite — A proper noun or historical adjective designating a follower, a member, or a specific doctrinal trait of the Ash'arite school of Islamic theology (founded by Abu al-Hasan al-Ash'ari in the 10th century); this scholastic philosophical and theological movement became the main pillar of Sunni orthodoxy, attempting to reconcile dialectical rationalism with the literal interpretation of sacred texts.
- Astion — The name of a 3rd-century Christian martyr saint who suffered and was decapitated in the fortress of Halmyris (today in Dobrogea, Romania) alongside the priest Epictetus, being considered the oldest documented martyrs on Romanian territory. In an onomastic sense, it represents a rare male given name of Greek origin, celebrated in the Orthodox calendar on July 8th.
- Astrenie — A rare onomastic or hagiographical variant, historically used in Romanian church manuscripts as a local adaptation for the feminine proper name Asteria or to denote an abstract regional form linked to stellar-astral influence in popular beliefs. In a religious context, it can refer to Saint Asteria (Astrenie), a virgin and martyr from the early Christian centuries, commemorated in synaxaria.
- Athonite — Pertaining to Mount Athos, referring to the monastic community, traditions, manuscripts, or ascetic rules of life specific to the Holy Mountain; as a noun, it denotes a monk or hermit living in one of the monasteries or sketes of this Greek peninsula. The term evokes Hesychast spirituality and Eastern Orthodox asceticism.
- Athos — A mountain and peninsula in northern Greece (Chalcidice, Macedonia region), forming a self-governing monastic state under the spiritual sovereignty of the Ecumenical Patriarchate of Constantinople. Universally known as the Holy Mountain (Agion Oros), it houses twenty large fortified monasteries (including Romanian sketes) and stands as the supreme spiritual center of Eastern Orthodox monasticism.
- Autocephalous — Self-governing; used to describe a national Eastern Orthodox Church that is fully independent administratively and legally from any external hierarchical authority or foreign patriarchate, while maintaining full dogmatic communion.
- Axion — A solemn religious hymn of praise and glory chanted in the Orthodox Church during the Holy Liturgy, immediately after the consecration of the Holy Gifts, dedicated to the hyperdulia and delicate veneration of the Blessed Virgin Mary. The name originates from Greek, from the first words of the liturgical chant 'Axion estin' ('It is truly meet' or 'Worthy it is'). Historically, the text is structurally formed of two distinct parts: the first being an Athonite introduction from the 10th-11th centuries, and the second an irmos composed in the 8th century by Saint Cosmas the Melodist.