Proper noun
Initialism of a number of proto-languages' names: Proto-Slavic.
Initialism of a number of proto-languages' names: Proto-Semitic.
Initialism of a number of proto-languages' names: Proto-Salish, Proto-Salishan.
Initialism of a number of proto-languages' names: Proto-Sahaptian.
Noun
a note appended to a letter after the signature
- Synonyms
- Broader terms