-su Godan/u-verb

1. to take down; to bring down; to lower (a hand, flag, shutter, etc.); to drop (an anchor, curtain, etc.); to let down (hair); to launch (a boat)
2. to drop off (a passenger); to let off; to unload (goods, a truck, etc.); to offload; to discharge (esp. 降ろす)
3. to withdraw (money)
4. to use for the first time; to wear for the first time
5. to cut off; to fillet (fish); to grate (e.g. radish); to prune (branches)
6. to remove (someone from a position); to oust; to drop (esp. 降ろす)
7. to clear (the table); to remove (offerings from an altar); to pass down (e.g. old clothes); to hand down
8. to expel from the body (e.g. worms); to abort (a fetus)
9. to invoke (a spirit); to call down

-su Godan/u-verb

1. to make a decision; to draw a conclusion
2. to give a judgement; to hand down a verdict; to pass a sentence; to give an order
3. to let go down; to lower
4. to do oneself; to do by oneself
5. to beat; to defeat
6. to have loose bowels; to have diarrhea
7. to pass (in stool); to discharge from the body

suffix

8. to do in one go; to do to the end without stopping (after -masu stem of verb)