fordern

Etymology
From /, from, from. More at.

Verb

 * 1)  to demand, ask
 * 2)  to claim
 * 3)  to require
 * 4)  to challenge
 * 1)  to challenge

Conjugation
Note: Forms with dropped e are also spelled with an apostrophe, e.g. ford’re instead of fordre and fordere.