This is the 8754th most frequent Catalan word.
escaigui
"Escaigui" is the third-person singular present subjunctive form of "escaure," meaning "to fit" or "to be suitable."
Here, 'escaigui' is used to convey fitting or being appropriate to something.
Espero que la solució que trobes escaigui al problema.
I hope that the solution you find fits the problem.
In this instance, 'escaigui' signifies compatibility or suitability to a theme.
Aquest llibre escaigui bé amb la temàtica que busques.
This book fits well with the theme you are looking for.
Here, 'escaigui' means to align or conform to specific requirements.