"Here the simplest mode of obtaining what we need is to insert the root of βιος after the negative particle in ‘atrophy’ which gives us ‘abiotrophy’. But it is generally better, if you can, to appropriate what you need than to make it afresh, and we find the word βιοτροϕος used in the sense of ‘vital nutrition’. If we prefix the negative particle we have the same word, ‘abiotrophy’" (OED).