Have you looked the word up in a good Latin-English dictionary? There are also fairly decent ones online, although the print dictionaries are still the best for Latin.
This one is adequate.
You should find quaero as the basis of the verb.
In addition, if you have studied gerunds, you know that any verb form with -end- in it is a gerund, and will be translated into English with an -ing ending.
So ... what do you think the word means?