#necessity

• Alethic — A specialized term used in logic and philosophy to describe modalities relating to truth, necessity, possibility, and contingency. In modal logic, an alethic property or proposition indicates the structural or logical truth of a state of affairs, independent of human knowledge (epistemic) or moral norms (deontic).
• Ananghe — A rare literary term, historically recorded as an archaism with roots in ancient Greek philosophy, designating an absolute necessity, a fatal constraint, implacable destiny, or a superior force that the human being cannot oppose. In old literary texts or philosophical essays, the concept is utilized to evoke the idea of cosmic fatality or a supreme moral and existential obligation governing the course of things beyond individual will.