What is the meaning of -il?

Passive suffix.

postpositive form of il

Alternative form of -el (“agentive suffix”)

forms nouns from nouns, denoting a place where animals are kept

Used to form the attributive form of cardinal numbers 11 to 19.

Forms adjectives from verbs, indicating an inclination or tendency to perform the verb's action.

indicating a place for holding a specified type of animal

-ile (tending to or capable of)

-ile (indicating relation or pertaining to)

Passive suffix.

Used to form diminutives

Source: wiktionary.org

See also