"Ye ken, that just beats the whole world for deepness," said the smith; and again began blowing the bellows.
They are those of a wolf—an old one, because of the deepness of the tracks.
Their thickness is regulated according to the deepness of the note required.
And now again she spoke in almost awed tones of my "deepness."
In the ears of the souls that were dead, in the dust of the deepness of death.
His voice had changed, until the deepness of it was terrifying.
She whispered his name, but not for him to hear; at the deepness of his slumber she became emboldened.
This feature is rather intensified by the deepness of the hair-root.
I could not answer him, I was so full of a deepness of peace.
And in the eye there was a melancholy and a deepness, if I may say so, more remarkable still.
Old English deop "profound, awful, mysterious; serious, solemn; deepness, depth," deope (adv.), from Proto-Germanic *deupaz (cf. Old Saxon diop, Old Frisian diap, Dutch diep, Old High German tiof, German tief, Old Norse djupr, Danish dyb, Swedish djup, Gothic diups "deep"), from PIE *dheub- "deep, hollow" (cf. Lithuanian dubus "deep, hollow, Old Church Slavonic duno "bottom, foundation," Welsh dwfn "deep," Old Irish domun "world," via sense development from "bottom" to "foundation" to "earth" to "world").
Figurative senses were in Old English; extended 16c. to color, sound. Deep pocket "wealth" is from 1951. To go off the deep end "lose control of oneself" is slang first recorded 1921, probably in reference to the deep end of a swimming pool, where a person on the surface can no longer touch bottom. When 3-D films seemed destined to be the next wave and the biggest thing to hit cinema since talkies, they were known as deepies (1953).
Old English deop "deep water," especially the sea, from the source of deep (adj.).