Word of the day: hummock

The word of the day is hummock:

1. Also, hammock. an elevated tract of land rising above the general level of a marshy region.
2. a knoll or hillock.
3. Also, hommock. a ridge in an ice field.

"knoll, hillock," 1555, originally nautical, "conical small hill on a seacoast," of obscure origin, though second element is dim. suffix -ock. In Florida, where the local form is hammock, it means a clump of hardwood trees on a knoll in a swamp or on a key.

(http://dictionary.reference.com/browse/hummock)

"On the flatter, wetter land around Lake Titicaca indigenous societies built almost five hundred square miles of raised fields: rectangular hummocks of earth, each several yards wide and scores or even hundreds of yards long."

 - Charles Mann, 1493: Uncovering the New World Columbus Created