The spelling of the word "ex cogitating" can be explained using the International Phonetic Alphabet (IPA). The first syllable "ex-" is pronounced as /ɛks/, which is a common prefix meaning "out of" or "former". The second syllable "co-" is pronounced as /kəʊ/, which means "together" or "with". The third syllable "-gi-" is pronounced as /dʒi:/, which makes the sound of "j". The final syllable "-tating" is pronounced as /teɪtɪŋ/, which is a common suffix for verbs meaning "to do". Therefore, "ex cogitating" means to stop considering or thinking about something.
The phrase "ex cogitating" does not have a specific etymology, as it is not a recognized word or phrase in the English language. "Ex" is a Latin preposition meaning "out of" or "from". "Cogitating" is the present participle of the verb "cogitate", which means to think deeply or ponder. However, combining these two words does not create a standard English term, so there is no established etymology for "ex cogitating". It might be a phrase used in a specific context or created for a specific purpose.