Usual Nickname, Unexpected Name--Evie/Evvie

That's a double-V, not a W. ;)
Evie is one of the fasting-rising nicknames, from traditional picks like Evelyn, Eva, & Evangeline, modern choices like Everly, Evianna, & Ever, and even imports like Ivanna, Evelina, & Evelia. There's possibilities for every style.

• Eavan (EE-van, Irish)--"beautiful radiance". Anglicized from Aoibheann.
• Evadne (eh-VAHD-nee, [ancient] Greek)--"good and holy"
• Evalda (EH-vahl-dah, Scandinavian)
• Evalill (EH-vah-lil, Scandinavian)--combination of Hebrew Eve ("life") & Old Norse "little"
• Evangeliya (eh-vahn-geh-LEE-yah, Bulgarian)--"good messenger" [angel]
• Evanthe (eh-VAHN-thee, [ancient] Greek)--"good flower". Latin form is Evanthia.
• Evdokia (ev-doh-KEE-ah, Greek)--"good thought"
• Eveliese (eh-veh-LEE-zeh, German)--combination of Eva & Elisabeth
• Evena (EH-veh-nah, Scandinavian)--other forms are Evinda & Evina.
• Everild (EV-er-ild, English)
• Everina (eh-veh-REE-nah, Scandinavian)--feminine of Evert [Everett]. Another form is Everta.
• Evgenia (ev-GEN-yah, Greek)--feminine of Evgenios [Eugene]
• Évike (AY-vih-keh, Hungarian)--form of Eve
• Evita (eh-VEE-tah, Spanish)--another form of Eve
• Evren (ev-REHN, Turkish)--"the universe" [unisex]
• Ewara (EH-vah-rah, German)--"law and protection"
• Ifanwy (ee-VAN-wee, Welsh)
• Ivančica (ee-vahn-CHEE-tsah, Croatian)--"daisy"