<sup>the wonders of the interweb------two minutes ago i was wondering where the word "cockle" came from. now i know. thank you al gore.

p.s.--you warm the any of several weedy plants, especially the corn cockle of my heart.

2</sup> ( P ) Pronunciation Key (kkl)
n.

Any of several weedy plants, especially the corn cockle.

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[Middle English cokkel, from Old English coccel, from Medieval Latin *cocculus, diminutive of Latin coccus, kermes berry, from Greek kokkos.]
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Source: The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2000 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

cock·le¹ ( P ) Pronunciation Key (kkl)
n.

1. Any of various bivalve mollusks of the family Cardiidae, having rounded or heart-shaped shells with radiating ribs.
2. The shell of a cockle.
3. A wrinkle; a pucker.
4. Nautical. A cockleshell.

intr. & tr.v. cock·led, cock·ling, cock·les

To become or cause to become wrinkled or puckered.

Idiom:
cockles of (one's) heart

One's innermost feelings: The valentine warmed the cockles of my heart.

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[Middle English cokel, from Old French coquille, shell, from Vulgar Latin *cochillia, from Latin conchyllium, from Greek konkhulion, diminutive of konkh, mussel.]