† per thesinadv.

Origin: A borrowing from Latin. Etymon: Latin per thesin.

Etymology: < post-classical Latin per thesin (4th or 5th cent.) < classical Latin per per prep. + thesin , accusative of thesis thesis n. Compare per arsin adv., and earlier per arsin et thesin adv.

Music. Obsolete.

Of a melody: descending from a higher to a lower note; (also) rising from a lower to a higher note. Cf. per arsin adv., earlier per arsin et thesin adv. 1.The terms per thesin and per arsin are rarely found outside of explanations of the more common term per arsin et thesin. The contradictory meanings appear to arise from confusion as to whether the reference is to the notes of the original melody or those of its imitation per arsin et thesin. This confusion may itself be influenced by the confusion with the underlying terms arsis and thesis (see note at arsis n. 2).

ΘΚΠ

society > leisure > the arts > music > musical sound > pitch > [adverb] > low > falling

per arsin1636

per thesin1636

1636 C. Butler Princ. Musik i. iii. 72 Revert is dhe Iterating of a Point in contrari Motion..dhe Replie mooving per Thesin, if dhe Principal Ascend, and per Arsin, if dhe Principal descend.

1728 E. Chambers Cycl. at Per Arsin, Per Thesin Per Thesin, when the Notes descend from the Acute to the Grave.

?1775 W. Waring tr. J.-J. Rousseau Dict. Music 24 In regard to the voice, we say that a chant, a counterpoint, a fugue, are per thesin [Fr. per Thesin], when the notes rise from flat to sharp; per arsin when they descend from sharp to flat.

1879 F. A. G. Ouseley in G. Grove Dict. Music I. 95/1 When applied to the voice, a subject, counterpart, or fugue, is said to be ‘per thesin’, when the notes ascend from grave to acute; ‘per arsin’ when they descend from acute to grave.

This entry has been updated (OED Third Edition, September 2018).

单词	per thesin
释义	† per thesinadv. Origin: A borrowing from Latin. Etymon: Latin per thesin. Etymology: < post-classical Latin per thesin (4th or 5th cent.) < classical Latin per per prep. + thesin , accusative of thesis thesis n. Compare per arsin adv., and earlier per arsin et thesin adv. Music. Obsolete. Of a melody: descending from a higher to a lower note; (also) rising from a lower to a higher note. Cf. per arsin adv., earlier per arsin et thesin adv. 1.The terms per thesin and per arsin are rarely found outside of explanations of the more common term per arsin et thesin. The contradictory meanings appear to arise from confusion as to whether the reference is to the notes of the original melody or those of its imitation per arsin et thesin. This confusion may itself be influenced by the confusion with the underlying terms arsis and thesis (see note at arsis n. 2). ΘΚΠ society > leisure > the arts > music > musical sound > pitch > [adverb] > low > falling per arsin1636 per thesin1636 1636 C. Butler Princ. Musik i. iii. 72 Revert is dhe Iterating of a Point in contrari Motion..dhe Replie mooving per Thesin, if dhe Principal Ascend, and per Arsin, if dhe Principal descend. 1728 E. Chambers Cycl. at Per Arsin, Per Thesin Per Thesin, when the Notes descend from the Acute to the Grave. ?1775 W. Waring tr. J.-J. Rousseau Dict. Music 24 In regard to the voice, we say that a chant, a counterpoint, a fugue, are per thesin [Fr. per Thesin], when the notes rise from flat to sharp; per arsin when they descend from sharp to flat. 1879 F. A. G. Ouseley in G. Grove Dict. Music I. 95/1 When applied to the voice, a subject, counterpart, or fugue, is said to be ‘per thesin’, when the notes ascend from grave to acute; ‘per arsin’ when they descend from acute to grave. This entry has been updated (OED Third Edition, September 2018). < adv.1636
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