[dot.ty] adj dot.ti.er ; -est [alter. of Sc dottle fool, fr. ME dotel, fr. doten] (15c) 1 a: mentally unbalanced: crazy b: amiably eccentric
2: being obsessed or infatuated
3: amusingly absurd: ridiculous "some sublimely ~ exchanges of letters" -- dot.ti.ly adv -- dot.ti.ness n
[2]dotty adj (1812): composed of or marked by dots