NB:
tome in
Microtome has the same root as the T in CAT scan: computer aided
tomography. Which is to say, slimly-sliced cabbage^W X-ray scans.
It's also the tome as in book, more properly one volume of a multi-volume (or multi-part) set, though it now generally simply means any large book.
<https://www.etymonline.com/search?q=tome>