目上: one's superiors, one's betters

an unnumbered chapter in The Tale of Genji at the end of 幻 (Maboroshi, chapter 41), where the death of the protagonist Hikaru Genji can be implied

to disappear, go into hiding

hiding or vanishing behind the clouds, said of, for example, the moon / a disappearance, going into hiding / the death of a person of great importance, such as a nobleman

Rare spelling of 蜘蛛海星 (“brittle star”).

gathering clouds / (meteorology) altocumulus

(anatomy) arachnoid

蜘蛛海星, 蜘蛛人手, 蛇尾: a brittle star

the condition of a vanishment being into thin air

a brittle star