βασιλεύειν

From LSJ

ἀνάγκη τὸ κινοῦν ἀντικινεῖσθαι → what incites movement must suffer a counter-movement

Source

Greek > English (Woodhouse Verbs Reversed)

(see also βασιλεύω): be king of, govern as king or commander, rule over as king

Lexicon Thucydideum

regnare, to rule, reign, 1.13.6, 1.137.3, 2.80.6, 2.98.1, 7.1.4, 8.58.1,
in aor. in the aorist regnum adipisci, to obtain rule, 1.14.2, 2.15.2, 2.97.3, 2.99.3, 4.101.5.