Temenos (Greek: τέμενος; plural: τεμένη, temene)[1] is a piece of land cut off and assigned as an official domain, especially to kings and chiefs, or a piece of land marked off from common uses and dedicated to a god, a sanctuary, holy grove or holy precinct: The Pythian race-course is called a temenos, the sacred valley of the Nile is the Νείλοιο πῖον τέμενος Κρονίδα ("the rich temenos of Cronides by the Nile"),[1][2] the Acropolis of Athens is the ἱερὸν τέμενος ("the holy temenos"; of Pallas).[1][3] The word derives from the Greek verb τέμνω (temnō), "to cut".[4][5] The earliest attested form of the word is the Mycenaean Greek 𐀳𐀕𐀜, te-me-no, written in Linear B syllabic script.[6]

temple (n.1) 

"building for worship, edifice dedicated to the service of a deity or deities," Old English tempel, from Latin templum "piece of ground consecrated for the taking of auspices, building for worship of a god," of uncertain signification. Commonly referred to PIE root *tem- "to cut" (see tome), on notion of "place reserved or cut out" [Watkins], or to root *temp- "to stretch" [Klein's sources], on notion of "cleared space in front of an altar" (see tenet). Compare Greek temenos "sacred area around a temple," literally "place cut off," from stem of temnein "to cut." Figurative sense of "any place regarded as occupied by divine presence" was in Old English. Applied to Jewish synagogues from 1590s.

temple (n.2) 

"side of the forehead," mid-14c., from Old French temple "side of the forehead" (11c.), from Vulgar Latin *tempula (plural taken as fem. singular), from Latin tempora, plural of tempus (genitive temporis) "side of the forehead," perhaps originally "the thin stretch of skin at the side of the forehead," from PIE *temp- "to stretch," an extension of the root *ten- "to stretch" (see tenet), from the notion of "stretched," thus "thin," which is the notion in cognate Old English ðunwange, literally "thin cheek." Or possibly associated with tempus span "timely space" (for a mortal blow with a sword).