tenuto

So as to be held for the full time value; sustained. Used chiefly as a direction.

In music, held; sustained; given full value: used of tones or chords occurring in contrast to staccato tones or chords. It is nearly the same in effect as legato. Abbreviated ten.

A tempo mark directing that a note or passage is to be held for the full time

A passage having this mark

In a sustained manner

describing a passage having this mark