The crossword solutions for the term 'When tripled, 'et cetera'' are YADA (4 letters), YADDA (5 letters), and BLAH (4 letters). YADA is a Hebrew phrase meaning 'and so on' or 'etcetera'. YADDA is a slang term derived from YADA, and is used to indicate that someone is talking without saying anything of substance. BLAH is an informal expression used to describe something that is boring, uninteresting, or tedious. All three terms can be used to refer to something that is not worth mentioning in detail.