summate /sumˈāt/

To add together

• drum brake
• drum brakes
• drumfire
• drumfires
• drumfish
• drumfishes
• drumhead
• drumhead cabbage
• drumhead court martial
• drumheads
• drum kit
• drum kits
• drumlier
• drumliest
• drumlin
• drumlins
• drumly
• drum machine
• drum machines
• drum-major
• drum majorette
• drum majorettes
• drum-majors
• drummed
• drummer