arsis

[ ahr-sis ]

/ ˈɑr sɪs /

Music. the upward stroke in conducting; upbeat. Compare thesis(def 4).

Prosody.

the part of a metrical foot that bears the ictus or stress.
(less commonly) a part of a metrical foot that does not bear the ictus.Compare thesis(def 5).

Origin of arsis

1350–1400; Middle English: raising the voice < Latin < Greek, equivalent to ar- (stem of aírein to raise, lift) + -sis -sis

arsey, arshin, arsine, arsino, arsino group, arsis, arsm, arson, arsonist, arsphenamine, arsy

The chief variations arise from resolution of the first arsis, cning lmhtig El.

A History of English Versification |Jakob Schipper
The sub-type A3 is type A with alliteration on the second arsis only and is limited almost entirely to the first hemistich.

A History of English Versification |Jakob Schipper
Examples of the resolution of the second arsis are less numerous, as wldor cninge El.

A History of English Versification |Jakob Schipper
A strengthened thesis occurs only after the second arsis; this sub-type might therefore be designated A3b.

A History of English Versification |Jakob Schipper

With arsis monosyllabic, the strong tendency is to make the thesis short.

English Verse |Raymond MacDonald Alden, Ph.D.

arsis

/ (ˈɑːsɪs) /

(in classical prosody) the long syllable or part on which the ictus falls in a metrical foot Compare thesis (def. 6)

C18: via Late Latin from Greek, from airein to raise