-izo
Spanish, suffix
-izo is spelled I-Z-O (3 letters) and appears about once in every 3 million words in written Spanish, the 67,533rd most frequent Spanish word form (wordfreq, 2021 data). -izo is a Spanish suffix meaning “forms adjectives from other adjectives, nouns, and verbs usually denoting propensity or likeness” (English Wiktionary, September 2026). On this page, izo is a different word: “first-person singular present indicative of izar”. On this page, izó is a different word: “third-person singular preterite indicative of izar”. The Spanish Wiktionary (Wikcionario) defines it as “Forma adjetivos a partir de otros adjetivos o participios, con el significado de "similitud o tendencia a" lo…”.
What does -izo mean in English?
suffix
- 1
forms adjectives from other adjectives, nouns, and verbs usually denoting propensity or likeness
enfermo (“sick”) + -izo → enfermizo (“sickly”)
verb
- 1
first-person singular present indicative of izar
verb
- 1
third-person singular preterite indicative of izar
suffix
- 1
third-person singular preterite indicative of -izar
Source: English Wiktionary, Spanish section, dump of September 2, 2026 (CC BY-SA 4.0).
How Spanish dictionaries define it
suffix: 1. Forma adjetivos a partir de otros adjetivos o participios, con el significado de "similitud o tendencia a" lo que indica el adjetivo o participio original. 2. Forma adjetivos a partir de sustantivos, con el significado de "con la cualidad o característica de" lo que indica el sustantivo original. 3. Forma sustantivos que generalmente indican "lugar".
The definition in the Spanish Wiktionary (Wikcionario), in Spanish.
Source: Spanish Wiktionary (Wikcionario), dump of September 1, 2026 (CC BY-SA 4.0), through kaikki.org.
How common is -izo in Spanish?
-izo appears about once in every 3 million words in written Spanish.
Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).