Hardy:

Is this for the USA? My understanding is:
https://www.avvo.com/legal-answers/what-does-----all-costs-o...
What does "...all costs of Court of said Plaintiff should be taxed against the party incurring the same" mean?
In civil lawsuits, both sides incur certain types of expenses that qualify as "taxable court costs." An example is the filing fee a plaintiff pays when he files his lawsuit. Ultimately, if he wins his lawsuit, then he'll be awarded "court costs," and the defendant would end up being forced by the court to reimburse the plaintiff for that filing fee.

Other big components of court costs are typically official court reporter transcripts.

But one side or the other has already paid these costs up front. So when cases settle by agreement, it's very common -- almost universal -- for the settlement paperwork (including dismissal orders) to provide for no one to get reimbursed for their costs.

TAXING COSTS. Designación dada al proceso de determinar y cargar a la parte perdedora en una acción legal los gastos involucrados en iniciar o defender la acción, a la cual la parte ganadora tiene derecho legalmente.
El acto por el cual se determina a qué costos tiene derecho una parte.

2. Es una regla que el jurado debe evaluar los daños y costos por separado, de modo que pueda parecer al tribunal que los costos no fueron considerados, en los daños; y cuando el jurado da los costos en una cantidad insuficiente para responder a los costos de la demanda, el demandante puede orar para que el oficial pueda gravar los costos, y tal tributación se inserta en el fallo: esto se dice que es doneex assensu del demandante, porque en su oración.

Traducción realizada con el traductor www.DeepL.com/Translator

TAXING COSTS, practice. The act by which it is ascertained to what costs a party is entitled.

2. It is a rule that the jury must assess the damages and costs separately, so that it may appear to the court that the costs were not considered, in the damages; and when the jury give costs in an amount insufficient to answer the costs of the suit,the plaintiff may pray that the officer may tax the costs, and such taxation is inserted in the judgment: this is said to be doneex assensu of the plaintiff, because at his prayer.

https://legal-dictionary.thefreedictionary.com/Taxing Costs