'Tmesis' is the only English word that begins with 'tm'
'Tmesis' is the only English word that begins with the letters 'tm'. The term refers to a technique wherein a word or phrase is separated into two parts, with other words interrupting them. An example of tmesis would be what-so-ever, where the word 'so' is inserted in the middle of 'whatever'. It is mainly used for emphasis in informal speech.