- in-bond shop,
Origin of in-depth
Origin of depth
- in water deeper than one is tall
- beyond the range of one's competence or understanding
Word Origin for depth
late 14c., apparently formed in Middle English on model of length, breadth; from Old English deop "deep" (see deep) + -th (2). Replaced older deopnes "deepness." Though the English word is relatively recent, the formation is in Proto-Germanic, *deupitho-, and corresponds to Old Saxon diupitha, Dutch diepte, Old Norse dypð, Gothic diupiþa.
Profoundly, thoroughly, as in It will take years to cover the entire subject in depth. [Mid-1900s]
see in depth; out of one's depth.