חָכָה
From LSJ
Καιροσκόπει (Καιρῷ σκόπει) τὰ πράγματ', ἄνπερ νοῦν ἔχῃς → Sanus es? Negotiorum observes tempora → Zur rechten Zeit tu alles, hast du nur Vernunft
English (Strong)
a primitive root (apparently akin to חָקָה through the idea of piercing); properly, to adhere to; hence, to await: long, tarry, wait.