in·ter·ces·sor 
(ĭn′tər-sĕsər)
(ĭn′tər-sĕsər)n.
One that intercedes.
[Late Middle English intercessour, from Latin intercessor, from intercessus, past participle of intercēdere, to intervene; see INTERCEDE.]
in′ter·cesso·ry adj.
- atoner
- at (one's) elbow
- at one's elbow
- at (one's) expense
- at one's expense
- at (one's) fingertips
- at one's fingertips
- at (one's) leisure
- at one's leisure
- at (one's) wits' end
- at one's wits' end
- at one time
- atonic
- atonicity
- atony
- atop
- atopic
- atopy
- -ator
- atorvastatin
- -atory
- a tough row to hoe
- atovaquone
- atoxic
- ATP