What does -īgō mean in Latin?

-īgō, a suffix, means “Suffixed to nouns and to verbs, forms nouns usually denoting diseased conditions.”.

How do you pronounce -īgō?

In classical Latin, [ˈiː.ɡoː]; in ecclesiastical (church) Latin, [ˈiː.ɡo].

suffix · femininethird declension

-īgō¹

-īgō f (genitive -īginis)

Classical[ˈiː.ɡoː]Ecclesiastical[ˈiː.ɡo]

Meaning

morphemeSuffixed to nouns and to verbs, forms nouns usually denoting diseased conditions.
impetō + -īgō → impetīgō
prūriō + -īgō → prūrīgō

Origins

A metanalysis of vertex + nasal suffix *-n- > *vertign- > *vertīgin- > vertīgō (“gyration, dizziness”) as vertō (“to turn”) + -īgō. Compare -ūgō (suffix forming nouns).

Descendants

Italian-igine
Sicilian-ìniga
Sicilian-ìnija

suffixfirst conjugation

-igō²

-igō (present infinitive -igāre, perfect active -igāvī, supine -igātum)

Classical[ɪ.ɡoː]Ecclesiastical[i.ɡo]

Meaning

morphemeEnlargement of -ō (suffix forming regular first-conjugation verbs).
fūmus + -igō → fūmigō
līs (oblique stem: līt-) + -igō → lītigō

Origins

Proto-Indo-European *-h₂tiinflu. Proto-Italic *-ājō Proto-Italic *-āō Latin -ōder. Latin -igō Reanalyzed from denominatives formed to nouns with the suffix -ex, -igis.

Quick answers

What does -īgō mean in Latin?: -īgō, a suffix, means “Suffixed to nouns and to verbs, forms nouns usually denoting diseased conditions.”.
How do you pronounce -īgō?: In classical Latin, [ˈiː.ɡoː]; in ecclesiastical (church) Latin, [ˈiː.ɡo].