sponsion /sponˈshən/

1. The act of becoming surety for another
2. An agreement or promise made on behalf of another, esp by an individual on behalf of his or her government

sponˈsional adjective

• rimiest
• riming
• rimless
• rim lock
• rim locks
• rimmed
• rimming
• rimmings
• rimose
• rimous
• rimrock
• rimrocks
• rims
• rim-shot
• rim-shots
• rimu
• rimus
• rimy
• rin
• rind
• rinded
• rinderpest
• rinderpests
• rindier
• rindiest