Hermit in the context of "O.S.B."

Conrad Confalonieri of Piacenza, TOSF (Italian: Corrado, 1290 [or 1284] (in Italian) – 19 February 1351), was an Italian hermit of the Third Order of St. Francis, who is venerated as a saint.

The Icelandic Commonwealth, also known as the Icelandic Free State, was the political unit existing in Iceland between the establishment of the Althing (Icelandic: Alþingi) in 930 and the pledge of fealty to the Norwegian king with the Old Covenant in 1262. With the probable exception of hermitic Irish monks known as Papar, Iceland was an uninhabited island until around 874.

The Icelandic Commonwealth had a unique political system whereby chieftains (goðar) established a common legal code and settled judicial disputes at the Althing, a national assembly. However, there was no executive body in Iceland that enforced the legal code. The Icelandic Commonwealth has consequently been characterized as a stateless society. During the 13th century, Iceland came under the control of the Kingdom of Norway.

Cosmas Indicopleustes (Koine Greek: Κοσμᾶς Ἰνδικοπλεύστης, lit. 'Cosmas who sailed to India'; also known as Cosmas the Monk) was a merchant and later hermit from Alexandria in Egypt. He was a 6th-century traveller who made several voyages to India during the reign of emperor Justinian. His work Christian Topography contained some of the earliest and most famous world maps.Cosmas was a pupil of the East Syriac Patriarch Aba I and was himself a follower of the Church of the East.

Augustinians are members of several religious orders that follow the Rule of Saint Augustine, written about 400 A.D. by Augustine of Hippo. There are two distinct types of Augustinians in Catholic religious orders dating back to the 12th–13th centuries:

• Various congregations of Canons Regular follow the Rule of Saint Augustine, embracing the evangelical counsels and leading a semi-monastic life, while remaining committed to pastoral care appropriate to their primary vocation as priests. They generally form one large community which might serve parishes in the vicinity, and are organized into autonomous congregations.
• Several orders of friars who live a mixed religious life of contemplation and apostolic ministry. The largest and most familiar is the Order of Saint Augustine (O.S.A.), founded in 1244 and originally known as the Hermits of Saint Augustine (O.E.S.A.). They are commonly known as the Austin Friars in England. Two other orders, the Order of Augustinian Recollects (O.A.R.) and the Discalced Augustinians (O.A.D.), were once part of the original Order under a single Prior General. The Recollects, begun in 1588 as a reform movement in Spain to recover the Order's eremitical roots, became autonomous in 1612. At the 100th General Chapter of the Order held in Rome in May 1592, those seeking reform of their way of life came to be called the Discalced (barefoot) and were authorized to seek their goals as an semi-independent branch. They were raised to the status of a separate mendicant Order in 1610.

There are also some Anglican religious orders created in the 19th century that follow Augustine's rule. These are composed only of women in several different communities of Augustinian nuns.

The Discalced Carmelites, formally the Order of the Discalced Brothers of the Blessed Virgin Mary of Mount Carmel (Latin: Ordo Fratrum Carmelitarum Discalceatorum Beatae Mariae Virginis de Monte Carmelo) or the Order of Discalced Carmelites (Latin: Ordo Carmelitarum Discalceatorum; abbrev.: OCD; sometimes called in earlier times Latin: Ordo Carmelitarum Excalceatorum), is a mendicant order in the Roman Catholic Church with roots in the eremitic tradition of the Desert Fathers. The order was established in the 16th century, pursuant to the reform of the Carmelites of the Ancient Observance, by two Spanish saints, Teresa of Ávila and John of the Cross. Discalced is derived from Latin, meaning "without shoes".

The third order, which is affiliated to the Discalced Carmelites, is the Secular Order of Discalced Carmelites.

A religious habit is a distinctive set of clothing worn by members of a religious order. Traditionally, some plain garb recognizable as a religious habit has also been worn by those leading the religious eremitic and anchoritic life, although in their case without conformity to a particular uniform style.

Uniformity and distinctiveness by order often evolved and changed over time. Interpretation of terms for clothes in religious rules could change over centuries. Furthermore, every time new communities gained importance in a cultural area the need for visual separation increased for new as well as old communities. Thus, modern habits are rooted in historic forms, but do not necessarily resemble them in cut, color, material, detail or use.