From Wiktionary, the free dictionary

• As a German and Dutch surname, from the old Germanic name Hacco, shortened from names derived from *hakkju (“enclosure, hedge”).
• Also as a German and Dutch surname, occupational surname for a butcher or woodcutter, see Hacker.
• As a north/Low German surname, variant of Haack.
• Also as a north/Low German surname, variant of Heck.
• Also as a north/Low German surname for someone who lived by a marsh, from hach, hack (“boggy water”).
• As an English surname, from the Middle English personal name Acke with a prosthetic H-, itself of North Germanic origin and a pet form of Old Norse Áskell, see Haskell.
• Also as an English surname, from Middle Dutch Hakke, denasalized from Hanke, a West Flemish and Picard form of John.
• Also as an English surname, from the Middle English adjective hak (“ruthless, unsparing”).
• As a Jewish surname, from Yiddish האַק (hak, “axe”).

Hack (plural Hacks)

1. A surname.

Clipping of Hackfleisch.

• IPA^(key): /hak/
• Rhymes: -ak

Hack n (strong, genitive Hacks, no plural)

1. minced meat, ground meat

   Geben Sie mir bitte ein Pfund Hack.

   Please give me a pound of ground meat.

• Hackbraten
• Rinderhack

Borrowed from English hack.

• IPA^(key): /hɛk/
• Rhymes: -ɛk

Hack m (strong, genitive Hacks or Hack, plural Hacks)

1. show horse (of unspecified breed) (clarification of this definition is needed.)

Borrowed from English hack.

Hack m (strong, genitive Hacks, plural Hacks)

1. (computing, slang) hack (exploit; illegitimate attempt to gain access)

• hacken
• Hacker m
• Hacking n

• “Hack” in Digitales Wörterbuch der deutschen Sprache
• “Hack” in Duden online
• “Hack” in Duden online

From Middle Low German hakke, from Proto-Germanic *hak(k)-, perhaps related to *hakô. Compare German Hacke, Dutch hak.

Hack f (plural Hacke)

1. hoe

Borrowed from English hack.

Hack m (plural Hacke)

1. lash, blow
2. cutting rejoinder