hættu

Hættu is the Icelandic imperative form of the verb hætta, meaning to stop or cease. It functions as a direct command or warning and is commonly translated into English as "Stop!" in many contexts.

The word is used both in isolation and within sentences. As a standalone command, it can appear on signs or as a spoken instruction: Hættu! In a sentence, it appears with additional information, such as Hættu að tala (Stop talking) or Hættu að detta (Stop falling/cease that action). It is typically directed at a single person, but can be understood as addressing a group depending on tone and context.

Hættu is frequently encountered in safety communications, instructional contexts, and everyday warnings. On roadways, in workplaces, or in public spaces, it serves as a concise way to call for immediate cessation of a behavior or action. The tone is direct and unequivocal, reflecting its role in preventing harm or facilitating safety.

Linguistically, hættu is the imperative form of the verb hætta, which in other forms can refer to continuing or ceasing actions across different persons and tenses. It should not be confused with the noun hætta, which means danger or risk in Icelandic. While related etymologically, the two words belong to different grammatical categories and are used in distinct ways.

See also: Icelandic language; Imperative mood; Safety signs; Language and safety.