ag-, agen-, act-, agi-, agit-

(Latin: to set in motion, to hurry, to shake; to drive; to do, to act; to lead, to conduct, to guide)

reagitate (verb), reagitates; reagitated; reagitating
1. To upset somebody anew: The sad news reagitated her memories of a similar tragedy in the past.
2. To stir or to shake once more: The recipe stated that the mixture was to be reagitated in order to make it very smooth.
3. To protest or to campaign another time: The demonstrators decided to reagitate the following week in order to make their issue clear to the politicians.l
reagitation (s) (noun), reagitations (pl)
1. The condition of being disrupted again with force: ; repeated commotion: The reagitation of the storm surprised the population in the small town.
2. A repeated annoyance of an individual's serenity: When Sally told her parent's that she got another bad grade in math, it caused her parents great reagitation.
3. A disturbance or confusion in public feeling caused by appeals, demonstrations, etc.: Each time unsettling news appeared in the newspapers, on TV, or in the local bars, a reagitation arose among the population in the city.
retroact (verb), retroacts; retroacted; retroacting
To do something in return or to act in opposition: When Mr. Timmons was voted into office, he retroacted some of the decisions that were made previously by the former chairman.
retroaction (s) (noun), retroactions (pl)
1. A reaction or a counter action: When Grace suffered from being overweight, she decided on retroaction, or a response to this problem by going on a strict diet.
2. An act that is influenced by a past circumstance: Retroaction was needed when planning the rebuilding of the town after the terrible flooding that destroyed so many buildings and land.
retroactive (adjective) (not comparable)
Regarding something that has an effect on a circumstance in the past: At work it was decided that the wages for the colleagues would be retroactive and the fellow workers were so happy to receive the extra pay for the job they did in the past!
retroactively (adverb) (not comparable)
Concerning how an event takes effect beginning on a date in the past: Mr. Smith was paid retroactively for his good work in the office going back to the beginning of the year,
retroactivity (s) (noun), retroactivities (pl)
The condition of affecting things or occurrences of the past; retroactiveness: The members of the meeting were opposed to the rule of retroactivity in situations when there had been a unanimous vote to settle the past issues.
squat (verb), squats; squatted; squatting
1. To sit in a crouching position with knees bent and the buttocks on or near the heels: While playing with the children, Janet squatted down on the floor.
2. To crouch down, as an animal does: To imitate a cat about to jump, Tommy squatted down and was ready to leap at the imaginary mouse.
3. To settle on unoccupied land without legal claim: The poverty-stricken family squatted on some farmland in a dry spot, although the property didn't belong to them.
4. To occupy a given piece of public land in order to acquire title to it: Since the small forest area didn't seem to belong to anyone, Jack and his family squatted on it for quite a long time hoping to claim it as legal owners.
5. Etymology: "to crouch on the heels", from Old French esquatir, "press down, lay flat, crush"; from es-, "out" (from Latin ex-) + Old French quatir, "press down, flatten"; from Vulgar Latin coactire "to press together, to force"; from Latin coactus, past participle of cogere, "to compel, to curdle, to collect"; from co- + agere, "to drive".
squatter (s) (noun), squatters (pl)
1. An illegal occupant of land or property, especially someone who takes over and lives in another person's empty house: The squatters were found one day dwelling in the old empty villa outside town and were then brought to better living quarters.
2. A person or animal that crouches down: The children were all squatters who were sitting on their haunches around the campfire next to their tents.
subagitate (verb), subagitates; subagitated; subagitating
To have intercourse: Jack said that the female cat first had to subagitate before it could have kittens.
subagitation (s) (noun) (no pl)
To have illicit sexual intercourse: Mary told her teenagers that subagitation would not be a good thing once they were married.
thermocoagulation (s) (noun) (no pl)
The process of converting tissue into a jell by heat: Thermocoagulation of tissues occurs by the action of high-frequency currents and is used in removal of growths and to produce stereotactic lesions in the brain.

Destruction and removal of tissue by thermocoagulation utilizes high-frequency electric currents:

thermoinactivation (s) (noun), thermoinactivations (pl)
Destruction of the power to act as a result of exposure to heat: Thermoinactivation is used to render enzymes or viruses inert.
transact (verb), transacts; transacted; transacting
1. To perform, carry through, or to conduct some action: In the corner grocery shop, the shopkeeper and the customer transacted the selling and purchase of the fruit and vegetables.
2. To hand over or to transfer something: At the bank, Jill gave the clerk $100 to be put into her savings account, so it was transacted at the counter in the bank.
3. To do business: In the little firm there were approximately one hundred sales that were transacted in the past week.
transaction (s) (noun), transactions (pl)
1. The activity of buying and selling something: The transaction was made at the car rental when Mr. Smart wanted to hire a car just for one day.
2. To move or shift money from one account to another: At the bank, Susan wanted a transaction made by having part of her funds transferred from her savings account to her checking account.
3. The process of conducting business or carrying out plans: After the email came from the supplier, the transaction was decided on.