Could it be that beguine is an alternative phrasing of pige?
https://da.wikipedia.org/wiki/Husassistent
From top of my head:
beguine -> pige
nun -> nanny, AKA barnepige
Could it be that beguine is an alternative phrasing of pige?
I think the term derives from T.BIJIN, like Tanfana (temple, tempus etc.) from T.ANFANG.