Smythe, 1924. Ingressive Aorist--

The aorist of verbs whose present denotes a state or a continued action, expresses the entrance into that state or the beginning of that action. This holds true of the other moods. Greek has no special form to denote entrance into a state in present time.

1925. Most of the verbs in question are denominatives, and the forms are chiefly those of the first aorist:--

αρχω rule ηρξα became ruler

βασιλευω am king εβασιλευσα became king

etc.

a. rarely with the second aorist: εσχον, took hold, took possession of, got.

b. The aorist of these verbs denotes also a simple occurrence of the action as an historical fact.