The correct spelling of the reflexive pronoun used in the first person plural form, "myselves", can be tricky for some to get right. The "y" in "my" combined with "selves" creates dual "s" sounds, which can lead to confusion. The phonetic transcription for "myselves" is /maɪˈsɛlvz/. To nail the spelling, remember to break the word down into its two components - "my" and "selves" - and focus on the "s" found in both, thereby avoiding common errors like writing "myselfs" or "myslef".
The term myselves is formed by adding the possessive suffix -s to the pronoun myself. The etymology of myself can be traced back to the 14th century Middle English word meself. It was formed by combining the reflexive pronoun me with the Old English word self meaning one's own person. The root of self can be traced back to the Proto-Germanic word *selbaz, which ultimately derives from the Proto-Indo-European root *sel meaning of oneself. So, myselves is essentially the plural possessive form of myself.