kveikinn

Kveikinn is an Icelandic noun meaning "the spark" or "the ignition." It can refer to a literal spark produced by striking a flame or mechanism, as well as to a figurative spark—an incentive, trigger, or catalyst that starts an action, idea, or process.

The word is formed from the verb kveikja, meaning "to light" or "to ignite," with the definite singular suffix -inn. As such, kveikinn functions as the definite form of the noun in neutral, non-technical contexts and can appear in various constructions describing ignition or inspiration.

In usage, kveikinn carries both concrete and abstract senses. In a physical sense it might describe the moment a flame is lit or a lighter produces fire. In a metaphorical sense it denotes the initial impulse that prompts a decision, project, or movement. The term is common in everyday Icelandic and occurs in literature, journalism, and conversation when discussing beginnings, motivation, or energy.