You searched for: “nonce”
nonce (adjective) (no comparatives)
Conveying a word or term which is used at only one time for one particular reason: Gerard created a nonce word, "obliviated-progress", to describe his frustration at being caught in a traffic jam for hours.

A famous nonce word, supercalifragilisticexpialidocious, was used in a musical movie called "Mary Poppins".

The song took place just after Mary Poppins won a horse race. Greatly excited about her victory, she was immediately surrounded by reporters who started asking her a lot of questions and they commented that she probably was at a loss for words. Mary disagreed, and she suggested that at least one word was appropriate for the situation and then she started to sing the song.

The elements of the word have been defined as follows: super-, "above"; cali-, "beauty"; fragilistic-, "delicate"; expiali-, "to atone"; and -docious, "educable" which are roughly translated as, "Atoning for educability through delicate beauty".

According to the film, the nonce word, supercalifragilisticexpialidocious was defined as, "Something to say when you have nothing to say."

— Compiled from information located in
Wikipedia.org
This entry is located in the following unit: English Words in Action, Group N (page 2)
nonce (NAHNS) (s) (noun), nonces (pl)
1. At the present time or on one particular occasion, place, or application: There are many words which are used for the nonce and so they are not used for very long or may not even be repeated by others.

For the nonce, the girl's basketball team is called "The Warriors".

3. Etymology: from Middle English ones, or (for then) "once"; (for the) nones, "present time".
This entry is located in the following unit: English Words in Action, Group N (page 2)