Origin: Of uncertain origin. Perhaps formed within English, by derivation. Etymons: pre- prefix, terminable adj.
Etymology: Origin uncertain; perhaps  <  pre- prefix + terminable adj. (although this is apparently first attested later), probably used for the purpose of rhyme (see quot. c1400).The word may perhaps reflect an unattested post-classical Latin form *praeterminabilis   <  *praeterminare  , rendering Hellenistic Greek προορίζειν   to determine beforehand  <  ancient Greek προ-  pro- prefix2   + ὁρίζειν   to bound (see horizon n.)  <  ὅροι   bounds, corresponding to classical Latin fīnēs  , terminī  . Compare predetermine v.   The Psalter passage cited in quot. c1400   is Psalm 62:12 (Vulgate: 61:13: quia tu reddes unicuique iuxta opera sua  ), and the poet's usage may have been prompted ultimately by Albertus Magnus's comment on this passage: ‘Primo, divinæ voluntatis ordinatio æterna et perfecta’, ‘firstly, the eternal and perfect order of the divine will’, [etc.]. However, it is not certain that the manuscript reading pertermynable   is not correct (hence probably showing per- prefix   with intensive meaning, perhaps ‘supreme in judgement’ or ‘having the power to determine all things’; see especially  Rev. Eng. Stud. (2008)  59 322–4).
This entry has been updated (OED Third Edition, March 2007; most recently modified version published online June 2021).