הֵיכָל

From LSJ

ὁ αὐτὸς ἔφησε τὸν μὲν ὕπνον ὀλιγοχρόνιον θάνατον, τὸν δὲ θάνατον πολυχρόνιον ὕπνονPlato said that sleep was a short-lived death but death was a long-lived sleep

Source

English (Strong)

probably from יָכֹל (in the sense of capacity); a large public building, such as a palace or temple: palace, temple.