# Fido

> English word · Proper noun · IPA /ˈfaɪ.dəʊ/ · frequency rank #44,781

## Definitions
1. A stereotypical given name for a dog.
2. Clipping of FidoNet.

## Etymology
From Spanish or Italian fido from Latin fīdus (“faithful”). Popularly claimed to be directly from Latin fīdō (“I trust, rely on”) instead of the Romance intermediary, but this might be folk etymology. The stereotypical dog's name is evidently very old; a newspaper from 1760 cites, "[a] small white Greyhound with a Collar, answers to the Name of Fido."

## Easily confused with
- **fo** (https://plainspell.com/en/vs/fido-vs-fo)
- **fit** (https://plainspell.com/en/vs/fido-vs-fit)
- **fix** (https://plainspell.com/en/vs/fido-vs-fix)
- **fig** (https://plainspell.com/en/vs/fido-vs-fig)
- **fin** (https://plainspell.com/en/vs/fido-vs-fin)
- **fir** (https://plainspell.com/en/vs/fido-vs-fir)
- **foo** (https://plainspell.com/en/vs/fido-vs-foo)
- **fil** (https://plainspell.com/en/vs/fido-vs-fil)
- **fro** (https://plainspell.com/en/vs/fido-vs-fro)
- **Flo** (https://plainspell.com/en/vs/fido-vs-flo)
- **FIS** (https://plainspell.com/en/vs/fido-vs-fis)
- **fie** (https://plainspell.com/en/vs/fido-vs-fie)
- **find** (https://plainspell.com/en/vs/fido-vs-find)
- **five** (https://plainspell.com/en/vs/fido-vs-five)
- **fire** (https://plainspell.com/en/vs/fido-vs-fire)
- **fine** (https://plainspell.com/en/vs/fido-vs-fine)
- **film** (https://plainspell.com/en/vs/fido-vs-film)
- **fish** (https://plainspell.com/en/vs/fido-vs-fish)
- **firm** (https://plainspell.com/en/vs/fido-vs-firm)
- **file** (https://plainspell.com/en/vs/fido-vs-file)

## Common misspellings (5)
`fdio`, `ffido`, `fiddo`, `fiod`, `ifdo`

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