What is the meaning of -cho?

Rōmaji transcription of ちょ

viscera

abdomen, stomach

Form of -ichcho used after sonorants.

Used to form augmentative nouns.

allomorph of -ato (adverb/postposition nominalizing suffix) used for stems that end in i

allomorph of -to (plural verb suffix) used for stems that end in i

allomorph of -icho (recent/distant past perfective plural suffix) used for stems that end in a vowel followed by i

forms augmentative nouns

ki class_(VII) relative marker

Source: wiktionary.org