typographical adj.

"art of composing types and printing from them," 1640s, from French typographie, from Medieval Latin typographia, from Greek typos (see type (n.)) + -grapheia "writing," from graphein "to write" (see -graphy).

compound adjectival word-forming element, usually interchangeable with -ic but sometimes with specialized sense (such as historic/historical, politic/political), Middle English, from Late Latin -icalis, from Latin -icus + -alis (see -al (1)). Probably it was needed because the forms in -ic often took on a noun sense (for example physic). Forms in -ical tend to be attested earlier in English than their twins in -ic.

1816, "compositor," short for typographer; 1892 as short for typographical error.