Here's a breakdown of the word:
* Napag-: This prefix indicates a completed action or a past experience.
* bulay-bulay: This is the root word, meaning "to contemplate" or "to meditate."
Therefore, "Napagbulay-bulay" means "contemplated" or "meditated upon."
Example:
* "Napagbulay-bulay niya ang kanyang mga pagkakamali." (He contemplated his mistakes.)
It implies a deep and thorough thinking process, usually with a sense of reflection and introspection.