Meanings
prepositional phrase
- UKobsoleteslangUpon my soul or honour; used to underline the truth of what one is saying.
Origin
Sivvy is a clipped corruption of asseveration.
Full word history & related roots →Cite this entry
APA
upon my sivvy. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/upon%20my%20sivvy
MLA
“upon my sivvy.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/upon%20my%20sivvy. Accessed November 5, 2026.
Chicago
WatkinsX Dictionary, s.v. “upon my sivvy,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/upon%20my%20sivvy.
Source: upon my sivvy on Wiktionary, CC BY-SA 4.0.