Breakdown of Hyvää yötä, tyttö ja poika!
ja
and
poika
boy
tyttö
girl
hyvää yötä
good night (to someone going to bed)
Questions & Answers about Hyvää yötä, tyttö ja poika!
Why is it Hyvää yötä instead of the basic forms Hyvä yö?
In Finnish, when you are wishing someone well, like saying "Good morning" or "Good night", you use a special form called the partitive case. That is why the basic words hyvä (good) and yö (night) get extra letters at the end to become hyvää and yötä. You are essentially wishing them a piece or an amount of a good night.
Why does yö become yötä with an ä instead of an a?
This is because of a rule called vowel harmony. Finnish words cannot mix front vowels (ä, ö, y) with back vowels (a, o, u) inside the same word. Because yö consists of front vowels, its ending must also use a front vowel. That is why it takes the -tä ending instead of -ta.
Since the greeting is Hyvää yötä, why aren't tyttö and poika in that same partitive case?
The partitive case is only applied to the thing you are wishing (hyvää yötä). The girl and boy are simply the people you are talking to. When addressing someone directly in Finnish, you just use the basic dictionary form (the nominative case), so tyttö and poika do not need to change to match the greeting.
I have seen poika translated as "son" before. Does it mean "boy" or "son"?
It actually means both! In Finnish, poika is the standard word for "boy", but it is also used for "son" depending on the context. In this sentence, since we are addressing a tyttö (girl) and a poika, "boy" is the most natural translation.
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