Strong's Greek Dictionary
εἰμί (esto)
second person singular present imperative of 1510; be thou; also estosan es'-to-san, third person of the same let them be
second person singular present imperative of 1510; be thou; also estosan es'-to-san, third person of the same let them be:--be. see GREEK for 1510
James Strong, Strong's Greek Dictionary (1890) — public domain