bamboo curtain; palace
Refers to a bamboo blind or curtain, and by extension, the imperial palace or a noble residence. The 'palace' sense is a metonymic usage from the bamboo blinds used in such places.
Inside the bamboo-curtained palace, a quiet banquet was being held.
Compound of 玉 (tama, 'jewel') and 垂れ (tare, 'hanging'). The exact historical derivation is uncertain; the spelling is conventionally associated with bamboo blinds and, by extension, the imperial palace.