Questions & Answers about Eruð þið ríkari og sterkari en við?
What are the base forms of ríkari and sterkari, and how is the comparative made here?
The base adjectives are ríkur (rich) and sterkur (strong). For most regular adjectives, you form the comparative by dropping the masculine ending (like -ur) and adding -ari.
Do the endings on ríkari and sterkari change depending on the gender of the people being spoken to?
No, and that makes comparatives quite easy! In the plural (since þið means you all), comparative adjectives always end in -ari in the nominative case, whether the group is all men, all women, or mixed.
The English translation says "than us", but the Icelandic sentence uses við (we). Why does it use the nominative case instead of an object form?
In Icelandic, the word en (than) is a conjunction connecting two equal parts. Because the subjects of the sentence (þið) are in the nominative case, the people they are compared to must also be in the nominative case (við). It is essentially short for "Are you richer and stronger than we are?"
How do we know the speaker is asking a group of people rather than just one person?
The pronoun þið is the plural form of "you". If the speaker were asking only one person, they would use the singular pronoun and verb form, making the question Ert þú ríkari og sterkari en við?