Etymology: Previous versions of the OED give the stress as: undeˈtached.
(un-prefix1 2.)
ΘΚΠ
the world > relative properties > wholeness > mutual relation of parts to whole > fact or action of being joined or joining > attachment > [adjective] > not detached or detachable
undetachable1871
undetached1877
1775 J. AshNew Dict. Eng. Lang.Undetatched, not detatched.]
1877 R. W. RaymondStatistics Mines & Mining 449 The particles showed plainly..these grayish colors undetached from the more white quartz.
This entry has not yet been fully updated (first published 1921; most recently modified version published online June 2019).