"The war was lost, thanks to the treachery of the traitor." Treachery is a noun, so it is best to use it as a direct subject. You could also use it interjectively.
You can use treachery in a sentence by saying, The girls were best of friends and one of them committed treachery between themselves in telling a secret. I suppose you could use that as a sentence. I hope it helped.
saying a fake i love you is tantamount to treachery
The viceroy will be livid when hears of your treachery!
This justifies the use of this word, in a sentence.
Example sentence - We used a stick to prop the fence up while we repaired it.
The word "ingenuous" would be used in a sentence like the word primitive. A example would be: "He told the truth because he was ingenuous." It can be also used for the phrase "ingenuous question".
If it were used in a sentence it would be easier to answer.
she jumped about playfully.
Alfalfa is a type of wheat, I think, so it would be used in a sentence as a noun.
Please provide the sentence in which you would like the word "child's" used.
Treachery is the act of betrayal. Hyberbole is a gross overstatement, an over-reaction. So the two together would be an overstatement of a switching of sides say. 'I don't believe you ate at McDonald's! We always go to Burger King! This is treachery!'
french