Learn Danish: Babyen har meget blød hud. - The baby has very soft skin.

The adjective blød (soft) must agree with the noun it describes, which is hud (skin). Because hud is a common gender noun (en hud) and is singular and indefinite in this sentence, the adjective takes the basic dictionary form blød. If the noun were neuter (an et word), it would be blødt, and if it were plural or definite, it would be bløde.

Is baby an English loanword, and how does it take Danish endings?

Yes, baby is borrowed directly from English, but it fully adapts to regular Danish grammar rules. It is a common gender noun, so it takes the -en suffix to mean the baby (babyen). If you wanted to talk about multiple babies, you would use the standard Danish plural ending to make babyer.

Why isn't there an article before meget blød hud?

Just like in English, the word hud (skin) is usually treated as an uncountable mass noun in this context. Because you are talking about skin in a general, uncountable sense, you do not use an indefinite article like en before the phrase.

Both blød and hud end with the letter d. Do they both use the Danish soft d sound?

Exactly! Both words end with the infamous Danish soft d (blødt d). It sounds somewhat similar to the English th in the word the, but your tongue should lightly rest behind your lower front teeth rather than between your upper and lower teeth.