Pumex durus est.

to be

Breakdown of Pumex durus est.

• durus: hard
• pumex: the pumice stone

Questions & Answers about Pumex durus est.

Why is pumex the subject of the sentence?

Because pumex is in the nominative singular, which is the case normally used for the subject of a sentence in Latin.

Here, pumex means pumice or pumice stone, and it is the thing being described as hard.

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What kind of word is durus?

Durus is an adjective, meaning hard.

In this sentence, it describes pumex, so it works as a predicate adjective:
Pumex durus est = Pumice is hard.

Latin often uses:

• a noun
• an adjective describing that noun
• the verb to be

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Why is it durus and not dura or durum?