I would like to know if there is preexisting metalanguage or a term to describe the following types of abbreviations often present in textese or SMS language:
- see → c,
- you → u,
- are → r,
- your → ur, etc.
The abbreviation involves a letter of the alphabet representing a word that is one of its homophones, e.g., 'see' /siː/ → 'c'/siː/, etc.
The term that I’m looking for would be analogous to “initialism” for “for your information” → FYI.
I have already done a fair amount of research and cannot find an answer; e.g., I looked at the Leet Wikipedia page prior to posting this question and the information there does not provide a clear enough answer.