William Faulkner's "Soldiers' Pay" first paragraph
"a more booted one than he" = "someone who was more booted than he was"
Many of the more booted ones suffered from a jaundice. He suffered from that same jaundice.
As Arm said, "booted" and "jaundice" are in dictionaries; so tell what you found about them if you cannot understand them.
Faulkner may not be easy to read for anyone!