Leekish

Occasionally a church gleams white, its spire thin on a leekish onion of dark grey; and then a small town spreads itself as the trees fall away — [...]

In describing garlic, Coghan contradicts other writers, for example Newton, who claims that it is a "grosse pothearb" that creates "naughty and corrupte iuyce," which in turn engenders a putrefying "leekish choler" in the body.