Lexical Definition

‎עָפַר‎ ʻâphar (aw-far') to throw ^H:V
a primitive root; meaning either to be gray or perhaps rather to pulverize; used only as denominative from ‎עָפָר‎,

cast (dust).

• to be dust

1) (Piel) to dust, powder

Brown-Driver-Briggs

[‎עָפַר‎] verb denominative Pi`el ‎וְעִפַּר בֶּעָפָר‎ 2Sam 16:13 and kept dusting (him) with dust (throwing [lumps of] dry earth at him).

Brown-Driver-Briggs References