בָּקַר

From LSJ

οὐ λήψει τὸ ὄνομα Κυρίου τοῦ Θεοῦ σου ἐπὶ ματαίω → thou shalt not take the name of the Lord thy God in vain

Source

English (Strong)

a primitive root; properly, to plough, or (generally) break forth, i.e. (figuratively) to inspect, admire, care for, consider: (make) inquire (-ry), (make) search, seek out.