Ollie

Ollie is an English familiar form of Oliver, which derives from the Old French Olivier, itself traced to the Latin Olivarius, meaning olive tree, or possibly influenced by the Old Norse name Áleifr (ancestor of Olaf), meaning ancestor's descendant. The olive branch carried strong associations with peace and prosperity in medieval Europe, lending the name positive connotations. Ollie gained independent use as a given name, particularly in English-speaking countries, and is also used as a short form of Olivia. Related forms include Oliver, Olivia, and Olaf.