To move unsteadily back and forth. To hesitate or be unable to make a decision - vacillate. (verb)

To listen secretly to the private conversation of others. (verb)

The specialized language of a trade, profession, or group of people. (noun)

The act of doing something or paying money to make up for some damage, loss, injury that you have caused. (noun)

Eavesdrop - part of speech?

restitution - part of speech?

jargon - part of speech?

waver - part of speech?

stamina - part of speech?