1) box, chest, coffer Part of Speech: noun masculine A Related Word by BDB/Strong’s Number: perhaps from H7264 (in the sense of being suspended) Same Word by TWOT Number: 2112d
Brown-Driver-Briggs
אֶרְגַּזnoun masculinebox, chest, or like receptacle (compare Arabic a kind of (camel-) vehicle for women, also a garment containing stones, etc., as balance, makeweight (at side of haudaj); from above √, as swaying ? Syriac sack, Talmud אַרְגָּזchest, coffin); — ׳הָא1 Samuel 6:8,11,15, compare HPS.
1 Samuel 6:8 HEB:אָשָׁ֔ם תָּשִׂ֥ימוּ בָאַרְגַּ֖ז מִצִּדּ֑וֹ וְשִׁלַּחְתֶּ֥ם NAS: to Him as a guilt offering in a box by its side. KJV: him [for] a trespass offering, in a coffer by the side INT: A guilt and put A box side send
1 Samuel 6:11 HEB:הָעֲגָלָ֑ה וְאֵ֣ת הָאַרְגַּ֗ז וְאֵת֙ עַכְבְּרֵ֣י NAS: on the cart, and the box with the golden KJV: upon the cart, and the coffer with the mice INT: on the cart and the box mice the golden
1 Samuel 6:15 HEB:יְהוָ֗ה וְאֶת־ הָאַרְגַּ֤ז אֲשֶׁר־ אִתּוֹ֙ NAS: of the LORD and the box that was with it, in which KJV: of the LORD, and the coffer that [was] with it, wherein the jewels INT: the ark of the LORD and the box which in
a kind of (camel-) vehicle for women, also a garment containing stones, etc., as balance, makeweight (at side of haudaj); from above √, as swaying ? Syriac 
sack, Talmud אַרְגָּזchest, coffin); — ׳הָא1 Samuel 6:8,11,15, compare HPS.