Supercharge, Supercharged, Surcharge, Surcharged

1. Verb: To place one  or more  charges within and upon another although the term to charge is more generally employed.

2. Substantive: One or more charges placed  within and upon another charge, e.g. three cinquefoils upon a chevron.

Compare with surmounted where a charge is placed over and across another.  

Illustration:                                                                                                                                                                                                                                                                                                        
Ameline coat of arms: Or a chevron purp supercharged with three cinquefoils arg