The term 'language suffix' refers to a group of suffixes that are added to the end of words to indicate a particular language or dialect. The three crossword solutions for this term are 'SPEAK' (5 letters), 'ese' (3 letters), and 'ish' (3 letters). 'SPEAK' is a suffix used to indicate a language or dialect, such as 'English-SPEAK' or 'Spanish-SPEAK'. 'Ese' is a suffix used to indicate a Spanish language or dialect, such as 'Chicano-ese'. Finally, 'ish' is a suffix used to indicate a language or dialect with a slight variation, such as 'British-ish' or 'Irish-ish'.