means A building set aside for worship, prayer, or religious ceremony — or, by extension, the flat region of the head between forehead and ear.

from The worship-building sense comes from Latin templum, originally a space marked out by an augur for observing omens — a sacred zone cut from the ordinary world, possibly tied to a root meaning 'to cut' or 'divide.' The anatomical 'temple' arrived by a separate path: it likely traces to Latin tempora, 'the times,' the spot on the head said to show the passing of time as hair greyed there first; the two senses converged in English only by the accident of spelling.