Correct spelling for the English word "Sissey" is [sˈɪsɪ], [sˈɪsɪ], [s_ˈɪ_s_ɪ] (IPA phonetic alphabet).
The term "Sissey" is believed to have originated as an alteration of the word "sissy", which has a more established etymology. "Sissy" is thought to have derived from the name "Cecily", which was a medieval given name. Over time, "Cecily" evolved into "Sisely", and eventually transformed into "sissy" to denote a boy or man who displayed traits considered feminine according to societal norms. The term began to be used as an insult or taunt for boys or men who were perceived as weak, cowardly, or unmanly. It is worth noting that the word has acquired negative connotations, and it is essential to use language respectfully and considerate of others.