Evert

Evert: To evert is to overthrow or upset. Starting with turn in Latin, evert shares its etymology with convert, revert, invert, divert, pervert, versatile, version, avert, obverse, extrovert, introvert, anniversary, subvert and versus.

Halrloprillalar was nearly bald, and had lips no everted than a monkey's.

A Book for Today: Ringworld Engineers by Larry Niven