King James Bible
King James Version (KJV)

A primitive root; to close (the lips or ears); by analology to contract (a window by bevelled jambs) -- narrow, shut, stop.
H331. atam
[אטם] verb shut, shut up (Mishna אטם, compare אוֺטֶם stoppage, Aramaic אֲטַם; Arabic contract, stop, fortress; Assyrian a‰amu, in list of headgear, etc. = turban? DlW, No. 155) —
Qal Participle active אֹטֵם Proverbs 17:28 2t.; passive אֲטֻמִים 1 Kings 6:4; אֲטֻמוֺת Ezekiel 40:16 2t.; — shut, stop, object lips Proverbs 17:28; ears 21:13; Isaiah 33:15; passive = closed (i.e. narrowed, narrowing, compare ᵑ6 in Co) א ׳חַלּוֺנוֺת Ezekiel 40:16; 41:16, 26; compare אֲטֻמִים שְׁקֻפִים חַלּוֺנֵי 1 Kings 6:4.
Hiph`il Imperfect id quod Qal יַאְטֵם Psalm 58:5 (jussive with sense of indicative, compare Dr§ 173 obs.) of adder, stopping ears, simile of wicked.