Probably of foreign origin; Shadrak, the Bab. Name of one of Daniel's companions -- Shadrach.
H7714. Shadrak
שַׁדְרַךְ proper name, masculine Babylonian name given to חֲנַנְיָה, one of Daniel's comrades Daniel 1:7 (form and meaning dubious; Dl (compare COT Dr) Šudur-Aku, command of Aku; JenThLZ 1895, 328 thinks Persian [*Khšatraka]; KöhlerZA iv (1889), 50 conjectures מרדך, so WklAltor. Forsch. iii. 47. 57 ZimKAT 3. 396).
שׁדשׁ (√of following; Sabean סתֿ סדתֿ,, six SabDenkm90 HomChrest. 47. 124; Arabic sixth (assimilation of last consonant), , six; Ethiopic six; Assyrian sudušu (s!) six-fold, seššu, sixth; compare also Aramaic שִׁתָּא שֵׁית,, , six, Nabataean שת, Palmyrene שתא Ldzb383 SAC118).
שַׁדְרַךְ13 proper name, masculine (compare Biblical Hebrew id.); — Daniel 2:49; 3:12 11t. 3.