for ἔστησαν, 3 pl. aor.1, they set or placed, Il. 12.56 (Aristarch., codd. aliq.), 2.525, Od. 3.182, al. (but the v.l. ἵστασαν is to be preferred).
ἔστᾰσαν: эп. 3 л. pl. aor. 1 к ἵστημι.