What is the meaning of -pa?

this, these

times; forms adverbial numerals.

directions; Signifies direction or movement relative to an object, both from and to depending on directional context or affixes on the verb.

male human

Expresses surprise or disappointment.

Expresses admission or concession.

Forms onomatopoeic verbs.

Epenthetic suffix added when the word would otherwise end in a consonant

Expresses that the speaker is surprised at or astonished by something.

please, kindly (appended to an imperative verb form in order to soften the command or request or turn it into a suggestion, or passive to form an urging hortative)

Expresses admission or concession, possibly in a way that expresses defeat.

if you like (used in giving a non-concrete instruction)

Expresses that the speaker is proud of something, also to boast or brag about something.

Used to narrate impulsive actions; when describing the speaker's own actions, expresses that the speaker decided to do the action at the referred time; when describing the (past) actions of the person being addressed, implies that the speaker is looking for an explanation.

When appended to a second-person imperative with the particle -s, gives the command or request a slightly more persuasive or inspiring tone.

I wish (expresses the speaker's desire for something that is not true)

Adds a general emphatic tone, the exact meaning of which depends on the tone of voice.

Expresses disagreement or objection (by arguing) in the form of an exclamation.

whether (no matter whether or not), no matter (if, what)

With interrogatives and conditional verbs, used to form self-deprecating, often rhetorical questions.

Forms adjectives or nouns of a very limited amount of verbs.

Genitive marker following consonants, except for Ayacucho; see Usage notes. See also: -p.

Indicates a repetitive action. Once more. See also: -paya

Source: wiktionary.org