Choice Style Guide: Foreign Languages
FOREIGN LANGUAGES (Chicago, ch. 11)
Foreign words in common English usage: Consult Merriam-Webster for foreign words or expressions. Many are now well established in English usage and thus do not require italics. Follow MW in applying accent marks or not. For example:
déjà vu
naiveté
vis-à-vis
catalogue raisonné (sing.)
catalogues raisonnés (pl.)
cinema verité
émigré
laissez-faire
né (masc.)
née (fem.)
protégé (masc.)
protégée (fem.)
resumé
jihad
intifada
burka
Apply italics to foreign terms not found in Webster's.
Particles: Practice varies regarding particles in names of persons in English-speaking countries. When in doubt, consult Webster’s New Biographical Dictionary or other competent authority. If a particle is lowercase, do not capitalize it even when the first name is dropped:
The author relies on Paul de Man’s literary theories.
The author relies on de Man’s literary theories.