opsophagist I could not find this anywhere, but remembered "opsonin" a medical
word, and looked up its etymology in AHD.

opsonin


SYLLABICATION:
op·so·nin
PRONUNCIATION:
ps-nn
NOUN:
An antibody or product of complement activation in blood serum that causes
bacteria or other foreign cells to become more susceptible to the action of
phagocytes.
ETYMOLOGY:
Latin opsnre, to buy provisions (from Greek opsnein, from opson,
condiment, delicacy; see epi- in Appendix I) + –in.

So I wonder if the guy who coined the word used this root, which would mean that
the person referred to used large amounts of condiments.
Anybody got a better idea?