Definitions for overlyˈoʊ vər li
Random House Webster's College Dictionary
o•ver•lyˈoʊ vər li(adv.)
Origin of overly:
bef. 1050; ME; OE oferlīce
excessively, overly, to a fault, too(adverb)
to a degree exceeding normal or proper limits
To an excessive degree.
Parents can be overly protective of their children.