Permanence, Permanency, n.
Etymology: [Cf. F. permanence.]
The quality or state of being permanent; continuance in the same state or place; duration; fixedness; as, the permanence of institutions; the permanence of nature.
Shades of meaning
Fernald lists permanence only as an antonym, under change.
He lists it without comment; the entries above explain its neighbors.
Synonyms
none given