A primitive root; properly, to hammer out (an edge), i.e. To sharpen -- instructer, sharp(-en), whet.
H3913. latash
[לָטַשׁ] verb hammer, sharpen, whet (Late Hebrew id., hammer, tap; Aramaic לְטַשׁ, sharpen; Arabic strike, tap); —
Qal Imperfect יִלְטוֺשׁ Job 16:9; Psalm 7:13; Infinitive construct לֵלְטוֺשׁ 1 Samuel 13:20; Participle לֹטֵשׁ; —
1 hammer, only Participle = hammerer followed by כָּלתֹֿרֵשׁ Genesis 4:22 (J).
2 sharpen sword חֶרֶב (accusative) Psalm 7:13; compare 1 Samuel 13:20, object מַחֲרֵשָׁה קַרְדֹּם, אֵת, מַחֲרֶשֶׁת,; figurative ׳ל לִי עֵינַיִם Job 16:9 my foe whets his eye for me
Pu`al Participle מְלֻטָּשׁ תַּעַר Psalm 52:4 a sharpened razor (in simile of evil tongue).