Agyból

Agyból is the elative form of the Hungarian noun agy (brain). It is formed with the suffix -ból and literally means “from the brain.” Agyból is used to indicate origin or source in phrases describing processes, thoughts, or phenomena that originate in the brain.

Etymology and grammar: The stem agy plus the elative suffix -ból yields agyból. The form marks origin from inside the brain and is typically part of a larger noun phrase or used in compound adjectives, such as agyból kiinduló gondolat or agyból kiinduló folyamat. Like other Hungarian elative forms, agyból answers questions such as where something comes from.

Usage: In scientific, medical, and literary prose, agyból is employed to attribute origin to the brain, often in contrast with other sources (e.g., testből, külvilágból). It frequently appears in idiomatic phrases describing cognitive or neural phenomena. Example sentences include: “Az agyból kiinduló gondolatok gyorsan megfogalmazódnak.” “A vizsgálat agyból kiinduló neuronális aktivitást mutatott.”

Notes: The term is not a standalone noun; it functions as a prepositional-like element within a phrase. Its use is largely determined by context and it belongs to the set of Hungarian case expressions formed with -ból/-ből. See also: elative case in Hungarian grammar; agy.