• IPA: /ˈnɒk/

From Middle English nokke, attested since the 14th century, probably from a Scandinavian/gmq - language (compare Swedish nock, but compare Dutch nok, from Middle Dutch nocke.

nock (plural nocks)

1. Either of the two grooves in a bow that hold the bowstring.
2. (archery) The notch at the rear of an arrow that fits on the bowstring.
   • [1611?], Homer, “(please specify |book=I to XXIV)”, in Geo[rge] Chapman, transl., The Iliads of Homer Prince of Poets. […], London: […] Nathaniell Butter, →OCLC ↗; republished as The Iliads of Homer, Prince of Poets, […], new edition, volume (please specify the book number), London: Charles Knight and Co., […], 1843, →OCLC ↗:

     He took his arrow by the nock.

     The spelling has been modernized.

3. (nautical) The upper fore corner of a boom sail or trysail.

• German: Nocke
• Spanish: culatín

nock (nocks, present participle nocking; simple past and past participle nocked)

1. (transitive) To fit an arrow against the bowstring of a bow or crossbow. (See also notch.)
2. (transitive) To cut a nock in (usually in an arrow's base or the tips of a bow).

1. (archery) fit the arrow to your bowstring

nock (plural nocks)

1. Misspelling of knock

From the Middle English - phrase atten okes ("at the oaks").

1. Surname.