†b.to still away: to remove or drive off by distillation. Obsolete.
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the world > matter > chemistry > chemical reactions or processes > subject to chemical reactions or processes [verb (transitive)] > subject to named chemical reaction or process > subject to distillation
distil1398
stilla1400
rectify?a1425
circulate1471
redistil1600
elixirate1605
to still forth1605
to still awaya1631
cohobate1651
to draw over1654
elixira1658
a1631 J. DonneSerm. (1956) VIII. 290 It is a miserable Alchimy and extracting of spirits, that stills away the spirit, the soule it selfe.