# theorize

> English word · Verb · IPA /ˈθɪə.ɹaɪz/ · frequency rank #50,838

## Definitions
1. To formulate a theory, especially about some specific subject.
2. To speculate.

## Etymology
From theory + -ize. First use appears c. 1599 in the text A pil to purge melancholie.

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