How Should We Format Non-English Words?

Here's the latest from Jami Gold, Paranormal Author :

Last month, we discussed if we should use italics for a characters thoughts. As part of that post, we mentioned the risk of overdoing italics. Words are emphasized when in italics, so by italicizing too much, we end up emphasizing nothing.

A similar problem with italics can crop up when we include non-English words (including invented words) in our stories. Especially as authors and audiences have grown in diversity, many have advocated...