
1) Russian folk clothing 2) Russian invention
Found on
https://www.crosswordclues.com/clue/kokoshnik

The kokoshnik (p=kɐˈkoʂnʲɪk) is a traditional Russian head-dresses worn by women and girls to accompany the sarafan, primarily worn in the northern regions of Russia in the 16th to 19th centuries. Historically a kokoshnik is a headdress worn by married women, though maidens wore a headdress very similar to a kokoshnik, but open in the back, n...
Found on
http://en.wikipedia.org/wiki/Kokoshnik
[architecture] Kokoshnik is a semicircular or keel-like exterior decorative element in the traditional Russian architecture, a type of corbel zakomara (that is an arch-like semicircular top of the church wall). Unlike zakomara that continues the curvature of the vault behind and carries a part of the vault`s weight, kokoshnik is pure decora...
Found on
http://en.wikipedia.org/wiki/Kokoshnik_(architecture)

(from the article `architecture, Western`) ...Italian decorative motifs. A third church, the modest Annunciation Cathedral (1484–89), with its warm beauty, was the work of Pskov architects. ...
Found on
http://www.britannica.com/eb/a-z/k/44

A kokoshnik is a Russian woman's hat, usually decorated with embroidery and pearls.
Found on
http://www.probertencyclopaedia.com/browse/PK.HTM
No exact match found.