All 3 Uses of

entwined
in
The Magic Mountain

Next to a metal-roofed arcade, open to the south and filled with lounge chairs, stood a flagpole, painted reddish brown and displaying a banner that fluttered full now and then—a fantasy flag, green and white, with a snake-entwined caduceus, the symbol of healing, at its center.†
Chpt 3.1 *

He was also inclined to temper tantrums and had frequently clashed with Herr Wenzel about politics or other matters, for he was incensed by the nationalist aspirations of the Bohemian, who likewise declared himself an advocate of temperance and would sometimes cast moral aspersions on the brewer's profession, whereupon the latter would turn red-faced and defend the incontestable benefits to health found in the beverage with which his interests were so intimately entwined.†
Chpt 6.5

And so, following Hans Castorp's instructions, they said no more; but the carriages quickly reached the grocer's little house entwined with wild grape, where they did not have to wait a moment.†
Chpt 7.5

Definition:

interconnected (not easily separated) or twisted together