H7712. shedar
[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 NöZMG xi (1886) 735); — Participle מִשְׁתַּדַּר [Dan 6:15] he was striving, followed by Infinitive