a diphthong, employed in the Latin language, and thence in the
English language, as the representative of the Greek diphthong oi. In
many words in common use, e alone stands instead of /. Classicists
prefer to write the diphthong oe separate in Latin words.
abbr. （常印在账单上）遗漏不在此限（omissions excepted）；古英语（Old English）