This is an irregular feature - both in frequency and oddness - dedicated to a word I came across that I have never previously used.
Varsovienne - n. A polka-like dance of Polish origin, dating back to at least 1850.
The word is of French origin, roughly translating as "the girl from Warsaw." The Varsovienne is danced to music in 3/4 or 3/8 time, and combined elements of the waltz and the mazurka. It is closely related to the Schottische, which my third-grade gym teacher taught us.