| aculeate |
| agitate(verb, bother, disturb, touch, promote) |
| bait(verb, food, excite, irritate, aggravate) |
| bestir(verb, support, charge, cause, disturb) |
| deepen(verb, increase, disturb, encourage, raise) |
| electrify(verb, bother, disturb, touch, start) |
| fillip(noun, motive) |
| finish(verb, sharp, hone) |
| goad(verb, support, upset, drive, bother) |
| heat up(verb, expression, increase, raise, produce) |
| heighten(verb, increase, disturb, encourage, raise) |
| incentive(noun, motive) |
| inflame(verb, bother, disturb, touch, start) |
| instigate(verb, support, drive, bother, cause) |
| invigorate |
| key up(verb, expression, phrasal verb, support, disturb) |
| magnify(verb, increase, disturb, encourage, raise) |
| sharp(verb, hone) |
| step up(verb, expression, increase, raise, severe) |
| stimulus(noun, motive) |