Lexical Definition

‎שְׁדַר‎ shᵉdar (shed-ar') to strive ^A:V
(Aramaic) a primitive root

labour.

• to endeavor

1) (Ithpael) to struggle, strive

See Greek: ἀγωνίζομαι

Brown-Driver-Briggs

[‎שְׁדַר‎] verb Hithpa. struggle, strive (ᵑ7 id. Pa`el wrestle, Ithpa`al be recalcitrant, also ‎שְׁדַל‎ Ithpa`al strive, and so Late Hebrew ‎שָׁדַל‎ (‎ל‎ for ‎ר‎), Syriac beguile, especially Pa`el, see Nö^{ZMG xi (1886) 735}); — Participle ‎מִשְׁתַּדַּר‎ Dan 6:15* he was striving, followed by Infinitive

Brown-Driver-Briggs References