What is the ったい / -ttai suffix called? In response to my question about , I was told of the specific suffix in use, the "." What is this / -ttai suffix called in English and in Japanese (or what would one call it if it does not have a specific name)? What exactly does it connote? Would someone be kind enough to provide me with a brief list of Japanese words using this suffix? (I found Dono's romanization hard to understand {sorry})

Some from a standard dictionary (using ending-by search) {} (thick), (puffy), {}{} (bragging), (impatient), {} (flat), {} (uncouth).

It's interesting to me how many of these have a row kana before the , and appears in the dictionary, as being something that attaches to the stem of a i-adjective or verb (basically as a strengthener).

This form seems common in {}, for example as in this site which splits the words into plain and ending versions, and also in {}.