I. ˈkwərk noun
Etymology: origin unknown
Date: 1565
1.
a. : an abrupt twist or curve
b. : a peculiar trait : idiosyncrasy
c. : accident , vagary
a quirk of fate
2. : a groove separating a bead or other molding from adjoining members
• quirk·i·ly ˈkwər-kə-lē adverb
• quirk·i·ness -kē-nəs noun
• quirk·ish ˈkwər-kish adjective
• quirky -kē adjective
II. verb
Date: 1878
: curve , twist
quirk ed his eyebrows