Genealogy / Is Aleska a Polish baby name ? [42]

Hi everyone! My grandparents are all Polish immigrants to Canada. I live in the US and my husband is from South American. My 2 year old son speaks Spanish and English, so we wanted to give him something to represent his Polish heritage...his name! So he is named Jarek. I have a little girl due in about 8 weeks. I really like the name Aleska, but was recently told it's not Polish. I know it's not common, but it appears on all of the Polish baby name websites. Can anyone help?