This is the 9392nd most frequent Polish word.
valdasa
It appears "valdasa" is not a Polish word. It may be a typo or from a different language.
Here, 'valdasa' is used as a noun referring to a word or term.
Valdasa znaczy wiele w lokalnym dialekcie.
Valdasa means a lot in the local dialect.
In this sentence, 'valdasa' is used metaphorically to signify something grand or inspiring.
Widząc valdasa na szczycie góry, poczułem respekt.
Seeing valdasa on the top of the mountain, I felt respect.
In this case, 'valdasa' refers to the etymology or origin of a term in academic context.