-ade

(Latin: suffix; forming nouns and verbs; an action done; the product of or a result of some kind of material or a process of doing something)

parade
persuade (verb), persuades; persuaded; persuading
1. To convince or to cajole someone to do something by reasoning or charming: "Mack and Mary tried to persuade Ralph to go on the trip with them."
2. To cause a person, or people, to believe something or to convince them through reasoning, arguing, or appealing to the emotions for the need of an action: "The local agency tried to persuade people that enforced environmental protection should be attempted."

"The professor persuaded his student to publish her research paper because he was convinced that it was of great value for other people to see and to enjoy."

pervade (verb), pervades; pervaded; pervading
To spread through or to be in every part of something or of people: "Cruel wars have pervaded throughout centuries of history."

"The feeling of doom pervaded the military when they realized that their enemy was attacking with such superior forces."

wade, weighed
wade (WAYD) (verb)
To walk through water or anything that is difficult to walk through: "It is nice to wade in the stream looking for pretty stones."

"Frank had to wade through the tall grass to get to the top of the hill."

2. To become involved with something potentially risky or dangerous: "Despite his better judgment, the police officer decided to wade into the unruly crowd."
weighed (WAYD) (verb)
1. Having found out how heavy someone or something was: "Because Paula was dieting, she weighed two pounds less than she did a week ago."

"Neil found out that the bananas weighed more than the pears."

2. Having thought carefully about something and formed an opinion or made a decision: "Before making a decision about buying a new car, Ted weighed the pros and the cons."

Cindy was carrying her little brother on her back, whom she declared weighed a ton, when she tried to wade across the stream.