Lexical Definition

‎שָׁקַק‎ shâqaq (shaw-kak') to rush ^H:V
a primitive root

have appetite, justle one against another, long, range, run (to and fro).

• to course (like a beast of prey)
• by implication, to seek greedily

1) to run, run about, rush, run to and fro, be eager or greedy or thirsty
1a) (Qal) roving, ranging, longing, rush out upon (participle)
1b) (Hithpalpel) to rush to and fro, rush back and forth

See Greek: διψάω · ἐλπίζω · ἐπιλαμβάνομαι · κενός

Brown-Driver-Briggs

[‎שָׁקַק‎] verb run, run about, rush (apparently akin to √ I. ‎שׁוק‎, whence ‎שׁוֺק‎); —

Qal Imperfect 3 masculine plural ‎בָּעִיר יָשֹׁקּוּ‎ Joel 2:9, of locusts (|| ‎יְרֻצוּן‎; > Gr proposes ‎יִסְּקוּ‎from ‎סלק‎); Participle ‎שֹׁקֵק‎ Isa 33:4, with ‎ב‎ of thing rush at, upon (like locusts); of roving, ranging bear Prov 28:15 (unless we read ‎שָׁקוּל‎, Toy); figurative of ‎נֶפֶשׁ‎ longing for water Isa 29:8 (|| ‎עָיֵם‎ and, v^a, ‎רֵקָה‎), Ps 107:9 (|| ‎רְעֵבָה‎). Hithpalpel Imperfect 3 masculine plural ‎יִשְׁתַּקְשְׁקוּן‎ Nah 2:5*, of chariots, they rush to and fro.

Brown-Driver-Briggs References