Questions & Answers about Mare tranquillum est, et nauta e portu exit.
Because tranquillum is an adjective agreeing with mare.
- mare = sea
- tranquillum = calm
In Latin, adjectives must match the noun they describe in gender, number, and case.
Here, mare is:
- neuter
- singular
- nominative
So the adjective also has to be neuter singular nominative, which gives tranquillum.
Mare is nominative singular.
It is the subject of est, so it is the thing being talked about: the sea is calm.
A learner may expect a noun ending like -us or -a, but mare is a third-declension neuter noun. Its nominative singular form is simply mare.
Because Latin does not have articles like English the and a/an.
So mare can mean: