† alum rochen.

Forms: late Middle English alym roche, late Middle English alume roche, late Middle English alome roche.

Origin: Formed within English, by compounding; modelled on French lexical items. Etymons: alum n.¹, roche n.¹

Etymology: < alum n.¹ + roche n.¹, after the French compounds cited at rock alum n. Compare slightly later roche alum n.

Obsolete.

= roche alum n.

ΘΚΠ

the world > matter > chemistry > chemical substances > salts > [noun] > alums > types > rock alum

alum roche?c1425

roche aluma1450

rock alum1651

?c1425 tr. Guy de Chauliac Grande Chirurgie (Paris) (1971) 618 Alume roche [?a1425 N.Y. Acad. Med. Alumen rochinum] is hote and drye.

a1500 (a1451) in Ld. Clermont Wks. J. Fortescue (1869) I. 553 They brynge all maner of Spycys, as..Alome Roche..Alome Soyle, [etc.].

This entry has been updated (OED Third Edition, March 2021).

单词	alum roche
释义	† alum rochen. Forms: late Middle English alym roche, late Middle English alume roche, late Middle English alome roche. Origin: Formed within English, by compounding; modelled on French lexical items. Etymons: alum n.¹, roche n.¹ Etymology: < alum n.¹ + roche n.¹, after the French compounds cited at rock alum n. Compare slightly later roche alum n. Obsolete. = roche alum n. ΘΚΠ the world > matter > chemistry > chemical substances > salts > [noun] > alums > types > rock alum alum roche?c1425 roche aluma1450 rock alum1651 ?c1425 tr. Guy de Chauliac Grande Chirurgie (Paris) (1971) 618 Alume roche [?a1425 N.Y. Acad. Med. Alumen rochinum] is hote and drye. a1500 (a1451) in Ld. Clermont Wks. J. Fortescue (1869) I. 553 They brynge all maner of Spycys, as..Alome Roche..Alome Soyle, [etc.]. This entry has been updated (OED Third Edition, March 2021). < n.?c1425
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