A tittle is a small distinguishing mark,
such as a diacritic or the dot on a lowercase i or j. The tittle is an integral
part of the glyph of i and j, but diacritic dots can appear over other letters
in various languages. In most languages, the tittle of i or j is omitted when a
diacritic is placed in the tittle's usual position (as í or ĵ), but not when
the diacritic appears elsewhere (as į, ɉ).
