ploy /ploi/

1. An employment, doings, affair, frolic, escapade, or engagement for amusement
2. A method or procedure used to achieve a particular result
3. A manoeuvre in a game, conversation, etc

• dullards
• dull-brained
• dull-browed
• dulled
• duller
• dullest
• dull-eyed
• dullier
• dulliest
• dulling
• dullish
• dullness
• dullnesses
• dulls
• dull-sighted
• dull-witted
• dully
• dulness
• dulnesses
• dulocracies
• dulocracy
• duloses
• dulosis
• dulotic
• dulse