(ˈ)(h)we|naz, _(h]wəˈ-\ conjunction
Etymology: Middle English (Scots) when as, from Middle English when (I) + as
1. archaic : at the or any time when : while
whenas in silks my Julia goes — Robert Herrick †1674
2. archaic : for the reason that : as
3. obsolete : although , whereas
cried “All hail!” whenas he meant all harm — Shakespeare