Whatever it means, and this is by no means certain, it's a musical annotation (like fff or andante). In the book of psalms you'll often find it at the end of a section, so Pause would be a sensible meaning; I don't know if it's being used as a name in modern Israel
However, there's no mystery about it being a boy name. In English we're used to female names ending in -a, but if you think about Hebrew names like Joshua
, there's no reason why this should be a rule in other languages.