the.com/quicksilver

Mercury's streetwise alias, for metal that refuses to sit still.

means A word for mercury, the metal that stays liquid at room temperature and beads up and skitters rather than staying put — also used for anything or anyone fast, changeable, and impossible to pin down.

from Straightforward Old English compound: 'quick' meaning 'living, alive' (as in 'the quick and the dead') plus 'silver' for its gleam. Together they named the silvery metal that seemed uncannily alive, forever wriggling into droplets rather than sitting still like a proper solid. The 'quick' sense faded from everyday English, but it survives fossilized here, and in 'quicken' and 'quicksand.'

actual identity
liquid metal, element 80, old alchemist code name
etymology
quick meant alive in old english, not fast
toxic legacy
hatters sniffed it, went mad, gave us the phrase
escape artist
shatters into beads that regroup, never truly separate
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