superadd

[ soo-per-ad ]

/ ˌsu pərˈæd /

to add over and above; join as a further addition; add besides.

Origin of superadd

1425–75; late Middle English superadden < Latin superaddere, equivalent to super- super- + addere to add

su·per·ad·di·tion

[soo-per-uh-dish-uh n] /ˌsu pər əˈdɪʃ ən/, noun su·per·ad·di·tion·al, adjective

Before this event, his Majesty was in gloomy humor; and special vexations had superadded themselves.

History Of Friedrich II. of Prussia, Vol. VI. (of XXI.) |Thomas Carlyle
Genius must be superadded to talent if you would have the supreme, either in poetry or in eloquence.

Classic French Course in English |William Cleaver Wilkinson
The wings are not altered legs; they are superadded to the legs.

Chambers's Edinburgh Journal, No. 437 |Various
The same is the case with the superadded syllables: -kin is Saxon; -et Norman.

The English Language |Robert Gordon Latham

Hence, then, the action of a spring superadded upon the action of gravity on a pendulum still leaves the motion harmonic.

Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 5 |Various

superadd

/ (ˌsuːpərˈæd) /

(tr) to add (something) to something that has already been added; add as extra

superaddition, noun superadditional, adjective