שָׁקַק

From LSJ

τί ἦ μοι ταῦτα περὶ δρῦν ἢ περὶ πέτρην → but what is this to me, about an oak or a rock | but what are these things about a tree or a rock to me | why all this about trees and rocks | why all this about what we have nothing to do with | but why am I off on this tangent

Source

English (Strong)

a primitive root; to course (like a beast of prey); by implication, to seek greedily: have appetite, justle one against another, long, range, run (to and fro).