A rare or archaic term possibly referring to a falling star or meteorite, or used in poetic contexts to describe a decline from stellar heights.
From 'astro-' (star) + 'fell' (past tense of fall, or meaning cruel/fierce). This appears to be a poetic or archaic formation with limited historical attestation in standard English.
This word is so rare it barely exists in modern English—it shows how many poetic 'star' combinations were created in older literature but only a few survived into contemporary use.
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