the word 'steep' originates from the old english adjective 'stēap', which carried meanings of high, lofty, or deep. this term is traced back to the proto-germanic 'staupaz', and while its ultimate proto-indo-european root is uncertain, it is possibly related to roots meaning 'to push, stick, or stiffen'. the core semantic concept of a sharp, pronounced rise or fall has remained remarkably consistent from its ancient use describing cliffs and precipices to its modern topographical sense. the figurative extension to describe exorbitant prices or demands leverages this same idea of an extreme, precipitous increase. the culinary verb 'to steep' developed later, in the 14th century, metaphorically from the notion of immersing something in a deep or high column of liquid.

the word is a simplex form. it is of old english origin, from the word 'stēap', meaning high, lofty, deep.