Angst

Etymology
From, from , from.

Noun

 * 1) fear; fright; anxiety

Usage notes

 * A distinction may be made (or may formerly have been made) between Angst meaning “fear as an emotional condition” and meaning “fear as the reasonable reaction to a threat”.
 * In contemporary German, the two words are widely treated as synonyms, with Angst being preferred over Furcht.
 * The exception to this is that can also express a respectful fear, which  cannot. For example,  may be a strong, submissive form of respect, whereas  would imply fear of paternal misconduct.

Noun

 * 1) fear, trepidation
 * 2) anguish, deep concern