# upon my sivvy

> English word · Prep_phrase

## Definitions
1. Upon my soul or honour; used to underline the truth of what one is saying.

## Etymology
Sivvy is a clipped corruption of asseveration.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/upon-my-sivvy