# proto

> English word · Adjective · frequency rank #21,626

## Definitions
1. Prototypical; preceding the proper beginning of something.

## Etymology
From the prefix proto-.

## Easily confused with
- **PTO** (https://plainspell.com/en/vs/proto-vs-pto)
- **proud** (https://plainspell.com/en/vs/proto-vs-proud)
- **prove** (https://plainspell.com/en/vs/proto-vs-prove)
- **proxy** (https://plainspell.com/en/vs/proto-vs-proxy)
- **Provo** (https://plainspell.com/en/vs/proto-vs-provo)
- **prowl** (https://plainspell.com/en/vs/proto-vs-prowl)
- **proton** (https://plainspell.com/en/vs/proto-vs-proton)
- **pro** (https://plainspell.com/en/vs/pro-vs-proto)
- **pot** (https://plainspell.com/en/vs/pot-vs-proto)
- **poo** (https://plainspell.com/en/vs/poo-vs-proto)
- **plot** (https://plainspell.com/en/vs/plot-vs-proto)
- **pros** (https://plainspell.com/en/vs/pros-vs-proto)
- **prom** (https://plainspell.com/en/vs/prom-vs-proto)
- **polo** (https://plainspell.com/en/vs/polo-vs-proto)
- **prop** (https://plainspell.com/en/vs/prop-vs-proto)
- **pots** (https://plainspell.com/en/vs/pots-vs-proto)
- **prob** (https://plainspell.com/en/vs/prob-vs-proto)
- **prod** (https://plainspell.com/en/vs/prod-vs-proto)
- **proc** (https://plainspell.com/en/vs/proc-vs-proto)
- **prog** (https://plainspell.com/en/vs/prog-vs-proto)

## Common misspellings (6)
`pproto`, `proot`, `protto`, `prroto`, `prtoo`, `rpoto`

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