From kern (“part of a letter which extends into the space used by another letter”) + -ing, from French carne (“corner”).
kerning (countable and uncountable, plural kernings)
- (typography) The horizontal space between selected pairs of glyphs in a typeface.
Kerning and tracking are sometimes confused; the latter refers to the uniform adjustment of letterspacing for a whole unit of text, while kerning relates to the spacing between two individual glyphs.
- present participle of kern
horizontal space between selected pairs of glyphs