Lexical Definition

‎פַּטִּישׁ‎ paṭṭîysh (pat-teesh') hammer H:N-M
intensively from an unused root meaning to pound

hammer.

1) forge hammer, hammer

Usage: 2 forms in 3 verses
Form Translated As     In Verse(s)
פַּטִּ֖ישׁ a hammer Isa.41.7
hammer of Jer.50.23
וּכְפַטִּ֖ישׁ and like a hammer Jer.23.29

Brown-Driver-Briggs

‎פַּטִּישׁ‎ noun masculineJer 50:23 forge-hammer; — (Late Hebrew = Biblical Hebrew; Aramaic loan-word according to Frä85, and so Arabic (compare Arabic tradition in Lane), see ᵑ7 ‎פַּטִּישָׁא‎; but LagBN 103 compare swine's snout, Syriac flat-nosed); — ‎׳‎‎פ‎ absolute Isa 41:7; Jer 23:29 construct Jer 50:23 figurative of Babylonian as destroyer.

Brown-Driver-Briggs References

Book Refs
Isaiah 41:7
Jeremiah 23:29 · 50:23