English
swaption
Blend of swap + option.
Today it means
noun An instrument granting the owner an option to enter an interest rate swap.
Sources
Sources: Wiktionary, “swaption”. By Wiktionary contributors, CC BY-SA 4.0, via kaikki.org (dump of Oct 3 2026); text adapted and restructured. Language periods are conventional ranges, not dates for this word. License.
Etymograph / swaption