The story
- Proto-Indo-European*ster-
- Ancient Greekστερεός (stereós)
- Frenchstéréo-
- Proto-Indo-European*(s)tew-
- Proto-Indo-European*(s)tewp-
- Proto-Hellenic*túpt͏̌ō
- Ancient Greekτῠ́πτω (tŭ́ptō)deverb.
- Ancient Greekτῠ́πος (tŭ́pos)
- Ecclesiastical Latintypu
- Frenchtype
- Frenchstéréotype
- English todaystereotype
Borrowed from French stéréotype (adjective), equivalent to stereo- + type. Printing sense is from 1817; the “conventional, formulaic, and oversimplified conception, opinion, or image” sense is recorded from 1922 in Walter Lippmann’s book Public Opinion.
Etymology from Wiktionary, CC BY-SA 4.0.