Middx

English Etymology Shortened form of en Middlesex taking all the letters of the first syllable and the final letter of the second syllable.Oxford University Calendar Style Guide 2015, page 4. Proper noun en Middlesex. en after a qualification University of Middlesex, used especially following post-nominal letters indicating status as a graduate.Oxford University Calendar Style Guide 2015, page 14. References en post-nominal letters denoting institutions