It's a phonetic English respelling of
Mariska, which is a pet form of Mária, the Hungarian form of
Maria. In Hungarian, S is pronounced as "sh", hence Marishka in English.
I still prefer
Mariska though, since it looks less "sloppy" to me.
Jayne Mansfield had a daughter named
Mariska by her Hungarian-born husband Miklós "
Mickey" Hargitay;
Mariska Hargitay is now famous in her own right as Detective
Olivia Benson on
Law and Order: Special Victims Unit.
Miranda
"Come... you must eat my child." — From an unknown badfic.
Proud adopter of 15 punctuation marks; see my profile for their names.