Lexical Definition

‎יֶלֶק‎ yeleq (yeh'-lek) locust H:N-M
from an unused root meaning to lick up

cankerworm, caterpillar.

1) young locust (early stage of development)
1a) caterpillar (as devouring)

See Greek: ἀκρίς

Usage: 8 forms in 9 verses
Form Translated As     In Verse(s)
כַּיָּ֑לֶק like the locust Nah.3.15
כַּיֶּ֔לֶק like locust Jer.51.14
like the locust Nah.3.15
כְּיֶ֥לֶק like a locust Jer.51.27
יֶ֥לֶק a locust Nah.3.16
וְ֝יֶ֗לֶק and locust Ps.105.34
הַיָּ֑לֶק the locust Joel.1.4
הַיֶּ֖לֶק the locust Joel.2.25
הַיֶּ֔לֶק the locust Joel.1.4

Brown-Driver-Briggs

‎יֶ֫לֶק‎ noun masculineNah 3:16 a kind of locust, absolute ‎יֶלֶק‎ Nah 3:16 + 5 t.; ‎יָ֑לֶק‎ Joel 1:4 + 2 t.; — always collective:
a. as devouring || ‎גָּזָם‎, ‎אַרְבֶּה‎, ‎חָסִיל‎, Joel 1:4 (twice in verse); Joel 2:25 || ‎אַרְבֶּה‎ Ps 105:34 (of Egyptian plague), compare Nah 3:15 a (but strike out We).
b. in simile of multitude of men Nah 3:15b Jer 51:14 of horses vJer 51:27 (‎יֶלֶק סָמָר‎).
c. in simile of scattering and disappearing Nah 3:16. ‎יַלְקוּט‎ see ‎לקט‎.

Brown-Driver-Briggs References

Book Refs
Psalms 105:34
Jeremiah 51:14 · 51:27
Joel 1:4 · 2:25
Nahum 3:15 · 3:16