Monotone
When no word in a sentence receives an inflection, it is said to be read in a monotone; that is, in nearly the same tone throughout. This uniformity of tone is occa-sionally adopted, and is fitted to express solemnity or sublimity of idea, and sometimes intensity of feeling. It is used, also, when the whole sentence or phrase is emphatic. In books of elocution, when it is marked at all, it is generally marked thus (—-), as in the lines following.
Examples
Hence! loathed melancholy!
Where brooding darkness spreads her jealous wings,
And the night raven sings;
There, under ebon shades and low-browed rocks,
As ragged as thy locks,
In deep Cimmerian darkness ever dwell.