貶下 is read as へんげ (henge) and means scorn.
へんげ
henge
けなす
to speak ill of
てんが
shogun (Edo period)
いか
including ...
ていか
fall
ろうか
corridor
ぶか
subordinate person
ちか
underground
your Highness
めした
subordinate
じょうげ
first and second volumes
らっか
としした
younger