# fiducial

> English word · Adjective · IPA /f(a)ɪˈdjuːʃ(ɪ)əl/

## Definitions
1. Accepted as a fixed basis of reference.
2. Based on having trust.

## Etymology
From Late Latin fīdūciālis, from fīdūcia (“trust, reliance”) + -ālis, from fīdō (“I trust”).

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