Meaning

noun an area in which something acts or operates or has power or control:

originFrom Late Middle English ambyte, borrowed from Latin ambitus (“circuit; circumference, perimeter; area within a perimeter; ground around a building; cycle, orbit, revolution”) (compare Late Latin ambitus (“neighbourhood; wall of a castle, monastery, or town; cloister; parish boundary”)), from ambīre + -tus (suffix forming verbal nouns from verbs). Ambīre is the present active infinitive of ambiō…

Etymology from Wiktionary, CC BY-SA 3.0