Consult the dictionary for plurals of Latin words (e.g., the word “data” is always plural) and note the exceptions to the dictionary in the Word List.
Examples: The data are incomplete. Data are…; data show; data dance; data sing.
The Latin abbreviations “etc.,” “i.e.,” and “e.g.” should only be used in parentheticals (in which case, they are followed by a comma); in text, they should be spelled out—using “and so on,” “that is,” and “for example,” respectively. If you use “e.g.” to introduce a list, do not use “etc.” at the end; it is redundant.
Use an English translation of “ceteris paribus,” which means “other things being equal” or “all else being equal.”
Most Latin terms are italicized; for example, use ex ante and ex post. Some terms and abbreviations (such as i.e., e.g., per se, and et al.), have become commonly accepted English terms, however, and should not be italicized.
Note: The term “et al.” in text or references is not preceded by a comma.