Przykryj proszę dziecko kocykiem, bo jest zimno.

Przykryj is the imperative form of przykryć, meaning cover.

So the speaker is telling one person to do something:
Cover the child...

A few useful points:

• przykryć = a perfective verb, usually used for a single completed action
• przykryj = the you singular command form
• the subject you is not said explicitly, because Polish usually leaves it understood in commands

So Przykryj means Cover! or, in this sentence, Please cover...

This is mainly about aspect.

• przykryć → perfective
• przykrywać / przykrywać? More commonly przykrywać → imperfective

In commands:

• przykryj suggests do it once / complete the action
• przykrywaj would sound more like be covering, cover repeatedly, or sometimes keep covering

In this sentence, the speaker wants one complete action:
Put the blanket over the child.
So przykryj is the natural choice.

Proszę makes the command more polite. Here it works like please.

So:

• Przykryj dziecko. = Cover the child.
• Przykryj proszę dziecko. = Please cover the child.

In Polish, proszę is very flexible in word order, so you can also hear:

• Proszę, przykryj dziecko.
• Przykryj dziecko, proszę.

All of these are natural. The version in your sentence sounds polite and conversational.

Yes, dziecko is the direct object, so in theory it is in the accusative case.

However, for this noun, the nominative and accusative singular look the same:

• nominative: dziecko
• accusative: dziecko

So even though the form does not change, its grammatical role does.

This is common with many neuter nouns in Polish.

It can mean either, depending on context.

• dziecko = child
• in many everyday situations, it can also be understood as baby

So if someone says Przykryj proszę dziecko kocykiem, the real-life meaning may be:

• Please cover the child with a blanket
• or Please cover the baby with a blanket

Both are possible.

Because kocykiem is the instrumental case of kocyk.

• kocyk = small blanket or little blanket
• kocykiem = with a small blanket

After verbs like przykryć, Polish often uses the instrumental to show what something is covered with.

So:

• przykryć dziecko kocykiem = to cover the child with a blanket

This is one of the most important things to notice in the sentence.

Yes.

• koc = blanket
• kocyk = a diminutive form, something like little blanket or small blanket

Diminutives are very common in Polish, especially when talking about:

• children
• family life
• household objects
• anything meant to sound warmer, softer, or more affectionate

Here kocykiem sounds very natural because the sentence is about covering a child, so the diminutive feels caring and gentle.

Bo means because.

It introduces the reason:

• Przykryj proszę dziecko kocykiem = the request
• bo jest zimno = the reason

So the structure is:

Please cover the child with a blanket, because it’s cold.

A learner should know that:

• bo is very common in everyday spoken Polish
• it is less formal than ponieważ or gdyż

In ordinary speech, bo is often the most natural choice.

Because jest zimno is an impersonal expression meaning it is cold.

In Polish, weather and general conditions are often expressed without a real subject:

• jest zimno = it is cold
• jest ciepło = it is warm
• jest ciemno = it is dark

English uses it as a grammatical subject, but Polish does not need one here.

Also, zimno is not an adjective in this sentence. It functions more like an adverb/predicative expression describing the situation generally.

Yes, Polish word order is fairly flexible.

Your sentence:

• Przykryj proszę dziecko kocykiem, bo jest zimno.

Other possible versions include:

• Proszę przykryj dziecko kocykiem, bo jest zimno.
• Przykryj dziecko kocykiem, proszę, bo jest zimno.
• Bo jest zimno, przykryj proszę dziecko kocykiem.

The basic meaning stays the same, but the focus and naturalness may shift a little.

The original version sounds very normal and conversational.

A word-for-word breakdown would look something like:

• Przykryj = cover
• proszę = please
• dziecko = child
• kocykiem = with a little blanket
• bo = because
• jest zimno = it is cold

But Polish does not line up word-for-word with English very neatly. Two main differences are:

1. Cases do a lot of the work
   English uses word order and prepositions more heavily.
   Polish marks relationships through endings like -iem in kocykiem.

2. No subject is needed in some expressions
   English says it is cold.
   Polish simply says jest zimno.

So the sentence is very natural in Polish, even though its structure is not the same as English.

It is generally informal to neutral, depending on tone and context.

Why?

• przykryj is the singular imperative, so it is addressed to one person
• there is no formal pan/pani structure
• proszę makes it polite, but not especially formal
• bo is everyday, conversational language

So this sounds like something one family member might say to another, or someone speaking naturally in a home setting.