Blue and pink to go, then.
What a wonderful idea for a password, Huey!
(Pink instead of indigo matches the colours in the song 'Sing a rainbow,' which my dad used to sing to me when I was a nipper).
So …
BLUE CONNECTION:
5. B - Bein sei (east); dig deep and reverse it.
PINK CONNECTION:
7. W - Stand her on her head! Indeed, Bergil's threat applies here, to bad Roman Virginia.
For 5, all I can see is elements kind of resembling parts of SEIN, the German for 'to be' and possibly 'mine' for 'dig deep.' Could it possibly be something to do with the Blue Mountains? But what on earth does 'bein sei (east)' signify?
For 7, the only female characters I can find at the moment are WANDLIMB and WIDOW RUMBLE! As Wandlimb (Fimbrethil) is Treebeard's long-lost wife, could the 'pink' element be that the Entwives wanted more plants and flowers, and hence left? Maybe she left Treebeard and went looking for pink carnations, or something?
I've looked through the Ent and Entwife duet, and blossom is mentioned, but it is described as 'like a shining snow.' But I suppose if you wanted to stretch it, and say that blossom *can* be pink ….
Huey, colour blindness is not limited to red/green, then?