-ão

Etymology 1
From, from. Akin to 🇨🇬, 🇨🇬 and 🇨🇬, compare 🇨🇬.

Suffix

 * , roughly equivalent to English quite

Etymology 2
From, from. .

Suffix

 * 1)  forming nouns denoting subatomic particles

Etymology 4
From, from (modern Portuguese: ) from , third-person plural present indicative of.

Suffix

 * , now a common misspelling

Usage notes
Some words ending in -ão pluralise as -ães. However, in these cases the -ão is not a suffix and derives from Old Portuguese -an, from Latin -ānem, -anēs.
 * →, from 🇨🇬,
 * →, from 🇨🇬,

derives from 🇨🇬 and is pluralised with -s: