Added 9 October 2026
swiftness
/ˈswɪftnɪs/ noun
noun Definition from Wiktionary (CC BY-SA). Pronunciation from Wiktionary, via Kaikki.org. More about swiftness at Wordnik → Where our words come from →
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The state of being swift.
with remarkable swiftness
Origin
From Middle English swiftnesse, swyftnesse, from Old English swiftnes (“swiftness”), equivalent to swift + -ness.
From Wiktionary, via Kaikki.org (CC BY-SA)