in sense by muse
(n.). Related: Mused; musing.
late 14c., protectors of the arts, from L. Musa, from Gk. Mousa, lit. "muse, music, song," from PIE root *mon-/*men-/*mn- "to think, remember" (see mind
(n.)). The names of the nine Muses, daughters of Zeus and Mnemosyne (q.v.), and their specialties are traditionally: Calliope
(epic poetry), Clio (history), Erato (love poetry, lyric art), Euterpe (music, especially flute), Melpomene (tragedy), Polymnia (hymns), Terpsichore (dance), Thalia (comedy), Urania (astronomy).
late 14c., "complaint," from prp. of muse
(v.). Meaning "pondering" is from mid-15c. Related: Musingly; musings.