feġġ

Etymology
Probably from. The phonetic form is slightly irregular (we would expect ), but the development of the noun into Maltese  appears very plausible.

Alternatively perhaps from with the original meaning “to cleave, open”, which makes sense for example when  is used of blood or tears that erupt from the body. Compare also, , etc.

Verb

 * 1) to appear (suddenly)

Noun

 * : appearance, appearing, especially when sudden or brief