supertitle

[ soo-per-tahyt-l ]
/ ˈsu pərˌtaɪt l /

noun

(especially in opera production) a translation of a segment of the libretto or other text or sometimes a brief summary of the plot projected onto a screen above the stage during a performance.

verb (used with object), su·per·ti·tled, su·per·ti·tling.

to provide supertitles for.
Also surtitle.

Origin of supertitle