Keðja
Keðja is the Icelandic noun for "chain." It denotes a connected series of linked elements, most commonly a physical chain made of metal used to transmit force, secure loads, or lift objects. The term also covers figurative meanings, such as a chain of events, a chain of custody, or a chain of reasoning, where items or steps are linked in sequence.
In scientific and technical language, keðja appears in compounds describing chained processes. For example, keðjuverkun is
Etymology and cognates: Keðja is of Germanic origin and has cognates in neighboring Scandinavian languages, notably
Usage notes: The word is common in everyday Icelandic and in technical writing. Definite and plural forms