ROGALLO
ROGALLOS
ROGATION
ROGATIONS
ROGATORY
ROGER
ROGERED
ROGERING
ROGERINGS
ROGERS
ROGNON
ROGNONS
ROGUE
ROGUED
ROGUEING
ROGUERIES
ROGUERY
ROGUES
ROGUESHIP
ROGUESHIPS
ROGUING
ROGUISH
ROGUISHLY
ROGUISHNESS
ROGUISHNESSES
ROGUY

26 words start with ROG.