De la Motte calls it a "Wechsel-Quart-Sext-Akkord" .

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chord of the third, fourth, and sixth V
https://www.musictheory.net/lessons/42

Defining and Labeling Inversions.
Chords are analyzed based on the quality and scale degree of a sonority within the context of the prevailing key center, which is notated in Roman numerals. The position of a sonority is based on the note of that chord that is articulated by the bass, which is notated in Arabic numerals to the right of the Roman.

Triads can have three positions:

a) Root Position, with the root of the chord in the bass,

b) 1st Inversion, with the third of the chord in the bass, or

c) 2nd Inversion, with the fifth of the chord in the bass.

The second inversion of a chord is when the fifth of the chord is in the bass.
https://en.wikipedia.org/wiki/Second_inversion

Egy hármashangzat második megfordítása, ha az akkord kvintje van a basszusban, ekkor kvartszextakkordról beszélünk.

In the second inversion, the bass is G—the 5th of the triad—with the root and the 3rd above it (both again shifted an octave higher), forming a 4th and a 6th above the (inverted) bass of G, respectively. This inversion can be either consonant or dissonant, and analytical notation sometimes treats it differently depending on the harmonic and voice-leading context in which it occurs (e.g., see Cadential six-four chord below).
https://en.wikipedia.org/wiki/Inversion_(music)

Understanding Inversions of Triads and Seventh Chords
https://www.d.umn.edu/~jrubin1/JHR Theory Inversions.htm

Second Inversion Triads - Gottry Percussion
www.gottrypercussion.com/musictheory/.../SecondInversionTri...
Second inversion triads almost never work as the primary chord for a functional area ... second inversion triad in which the bass alternates between root and 5th.



kvartszextakkord (kvartszextakkord перевод) « Венгерско ...
www.classes.ru/.../dictionary-hungarian-russian1-term...
kvartszextakkord - zene. квартсекстаккорд;átmenő \~ — проходящий квартсекстаккорд. Венгерско-русский словарь 1 (online онлайн версия).

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Note added at 18 days (2016-04-06 05:53:36 GMT) Post-grading
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Mulţumesc, Marcella.