weil

Etymology
From the accusative of (modern ), from, from , from.

Conjunction

 * 1) because, given that
 * 2)  while, during
 * 1)  while, during

Usage notes

 * In standard German, weil is a subordinating conjunction and links a subordinate clause with the conjugated verb in the final position: At the beginning of a sentence, some style guides prefer replacing weil with :
 * In spontaneous speech, is also used as a coordinating conjunction by linking a second independent clause with the conjugated verb in the second position:  Here,  functions similarly to :  In writing which imitates speech (such as texting), this same phenomenon can be observed.
 * It is possible that is currently undergoing a process of re-grammaticalization in which it can be used like  or ; that is, as a subordinating or coordinating conjunction. From 1955 to 1974, only 8.3% of -clauses in spontaneous speech were verb-second, yet by 1993 to 2000, this had increased to 46.6%. If such a process is underway, it is far from complete: Usage of  as a coordinating conjunction with a verb-second word order remains nonstandard and is virtually non-existent in formal written German.