What is the meaning of -im?

-ism, -ation, -ment; Suffixed to nouns or verbs to form masculine abstract nouns of practice (action or incidence), result, teaching (doctrine or philosophy), or status (state or condition) related to the thing or action

Indicates a transitive verb

diminutive suffix added to nouns

noun-forming suffix added to verbs

my ... -s (first-person singular, multiple possessions)

first-person singular present indicative and imperative ending of verbs

first-person singular suffix

Feminine plural agreement suffix

Feminine plural agreement suffix

Indicates a transitive verb

corn, grain, berry

forms diminutives

Pronunciation spelling of -inho, representing especially Minas Gerais Portuguese.

Indicates a transitive verb

First-person singular possessive suffix denoting singular possession in words ending in a consonant.

Conjugation of the verb "to be" for first-person singular, simple present tense.

Personal suffix for "ben" ("I" - first person singular)

Derives nouns from verbs of an instance of, or a result of performing, the action implied by the verb.

first-person singular possessive suffix, used after a noun ending in a consonant

-ism

Source: wiktionary.org