In Ashkenazik circles, can a child be named similar to a living grandparent?
How close is too close?
Examples:
David & Davida
Mira & Meira
Chana & Chanan
Gila & Gilaad
Misha & Moshe
Bella & Beila
Eli & Eliezer
EDIT:
My question is really: can the names sound alike? or is more about meaning of the name?