Punctilio \Punc*til"io\ (p[u^][ng]k*t[i^]l"y[-o]), n.; pl.
{Punctilios} (-y[=o]z). [It. puntiglio, or Sp. puntillo, dim.
fr. L. punctum point. See {Point}, n.]
A nice point of exactness in conduct, ceremony, or
proceeding; particularity or exactness in forms; as, the
punctilios of a public ceremony.
[1913 Webster]
They will not part with the least punctilio in their
opinions and practices. --Fuller.
[1913 Webster]