Italicize words from other languages unless they have become part of English—like the French “bourgeois” or the Italian “pasta,” for example. If a word is in an English dictionary, it does not need italics.

At last one of the phantom sleighs gliding along the street would come to a stop, and with gawky haste Mr. Burness in his fox-furred shapka would make for our door.

– Vladimir Nabokov, Speak, Memory