Anchorite

Anchorite (female: anchoress; adj. anchoritic; from Ancient Greek: ἀναχωρέω, anachōreō, signifying "to withdraw", "to depart into the rural countryside") denotes someone who, for religious reasons, withdraws from secular society so as to be able to lead an intensely prayer-oriented, ascetic, and—circumstances permitting—Eucharist-focused life. As a result, anchorites are usually considered to be a type of religious hermit, although there are distinctions in their historical development and theology.

• http://en.wikipedia.org/wiki/Anchorite