Haken

For Wolfgang Haken, who studied these manifolds.

Haken (not comparable)

1. (topology, of a 3-manifold) Irreducible, compact, and containing a non-∂-parallel incompressible surface (besides a sphere or disk).

• Hanke, kaneh, khaen

From Middle High German hāke, from Old High German hāggo, hācko, hāko, from Proto-West Germanic *hakō, from Proto-Germanic *hakô, from Proto-Indo-European *keg-, *keng- (“peg; hook”).

One of the rare words with a long vowel followed by an original geminate, which was later simplified. Cognate with Dutch haak. Further related with Dutch hoek, English hook, Danish hage.

• IPA^(key): /ˈhaːkŋ̩/, /ˈhaːkən/

• Audio (Austria)

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• Homophone: haken

Haken m (strong, genitive Hakens, plural Haken, diminutive Häkchen n)

1. hook
2. catch, hitch (a concealed difficulty, especially in a deal or negotiation)
3. checkmark

   Synonym: Häkchen

• “Haken” in Digitales Wörterbuch der deutschen Sprache
• “Haken” in Uni Leipzig: Wortschatz-Lexikon
• “Haken” in Duden online
• “Haken” in OpenThesaurus.de
• Haken on the German Wikipedia.Wikipedia ^de
• “Haken” in Deutsches Wörterbuch von Jacob und Wilhelm Grimm, 16 vols., Leipzig 1854–1961.