I am a native speaker of spanish, and I assure you that it is not a word. Perhaps you read it wrong or misheard it. Sever words look/sound similar to "Mantana". "Montaña" means mountain, while "mañana" means tommorow.
dog
afuras is not a spanish word.
gaka is not a Spanish word
"quidera" is not a Spanish word.
"Coll" is not a Spanish word.
It is the Spanish word for "fox".
The word for "after" in Spanish is "después".
I think what you mean is "What is the Spanish word for let?" because the word "let" is an English word, not Spanish. The Spanish word for "to let" is permitir. "Let me" is "permítame."
That's not a Spanish word.
alico is not a Spanish word.
Nuxe is not a Spanish word.
quest is not a Spanish word.