The word 'sterile' entered English in the late 16th century from the Latin 'sterilis', meaning 'barren, unfruitful'. This Latin term is likely derived from the Proto-Indo-European root ster-, which meant 'stiff, rigid, solid', an idea that evolved metaphorically into the concept of barrenness or unproductiveness. The semantic journey moved from a physical state of being hard and unyielding to the biological state of being incapable of producing offspring. Over time, its meaning expanded in scientific and general contexts to encompass the absence of life (as in germs) and, figuratively, a lack of creative vitality.

The word 'sterile' is a simplex loanword from Latin. It is not productively segmented into meaningful substrings in modern English spelling.