Reading posts like 700 223s warms the cockles of my heart(whats a cockle anyways? lol)
World Wide Wrods.com: [Q] “I’m curious about the idiom warm the cockles of your heart.”
[A] It’s one of the more lovely idioms in the language, isn’t it? Something that warms the cockles of one’s heart induces a glow of pleasure, sympathy, affection, or some such similar emotion. What gets warmed is the innermost part of one’s being. It’s not that surprising that it should be associated with the heart, that being the presumed seat of the emotions for most people. But what are the cockles?
We’re not sure. We do know that the expression turns up first in the middle of the seventeenth century, and that the earliest form of the idiom was rejoice the cockles of one’s heart.
Cockles are a type of bivalve mollusc, once a staple part of the diet for many British people (you may recall that Sweet Molly Malone once wheeled her wheelbarrow through Dublin’s fair city, crying “cockles and mussels, alive, alive oh!”). They are frequently heart-shaped (their formal zoological genus was at one time Cardium, of the heart), with ribbed shells.
It may be that the shape and spiral ribbing of the ventricles of the heart reminded surgeons of the two valves of the cockle. But I can’t find an example of the word cockle being applied to the heart outside this expression, which makes me suspicious of this explanation. It may be that the shape of the cockleshell, suggesting the heart as it so obviously does, gave rise to cockles of the heart as an expansion.
After this piece appeared in the Newsletter, James Woodfield pointed out that there is another possible explanation. In medieval Latin, the ventricles of the heart were at times called cochleae cordis, where the second word is an inflected form of cor, heart. Those unversed in Latin could have misinterpreted cochleae as cockles, or it might have started out as a university in-joke. Oddly, cochlea in Latin is the word for a snail (from the shape of the ventricles — it’s also the name given to the spiral cavity of the inner ear), so if this story is right we should really be speaking of warming the snails of one’s heart.
Wikipedia: The phrase 'warm the cockles of one's heart' refererences to the ventricles of the heart. (Latin: cochleae cordis)
Columbia Encyclopedia: COCKLE - common name applied to the heart-shaped, jumping or leaping marine bivalve mollusks, belonging to the order Eulamellibranchia. The brittle shells are of uniform size, are obliquely spherical, and possess distinct radiating ridges, or ribs, which aid the animal in gripping the sand. The mantle has three distinct apertures (inhalant, exhalant, and pedal) through which the inhalant and exhalant siphons and the foot protrude. The cockle lives in sand and mud in shallow water, often in brackish inlets. It burrows until only the siphons project, pulling in water from which the animal strains the minute planktonic organisms on which it feeds. All cockles are hermaphroditic. In order to accomplish the characteristic jumping form of forward locomotion, the large, powerful, muscular foot is bent backward beneath the shell and then straightened. In most adults, the foot is about as long as the greatest length of the shell.
Several species of cockles are considered to be good, edible clams. In the British Isles, great numbers of cockles are taken annually for food from densely populated beds. These beds have been known to migrate in units, probably in response to changes in currents. Protothaca staminea, the rock cockle, is among the best known and most widely used for food. It usually does not exceed 3 in. (7.5 cm) in length. Rock cockles are poor diggers and inhabit packed mud, or gravel mixed with sand, usually 8 in. (20 cm) below the surface. They are found on the Pacific Coast near the rocky shores of bays and estuaries. Those inhabiting the open coast during the summer months should not be eaten because they may be infected with toxin-producing organisms. P. semidecussata, the Japanese littleneck clam, is smaller but considered to be better-flavored than the rock cockle. The shell is more elongated, with a brownish to bluish banding on one end. It inhabits an environment similar to that of P. staminea and is widespread in Puget Sound, Wash.; British Columbia; and San Francisco and Tomales Bay, Calif.
Mary, Mary, quite contrary,
How does your garden grow?
With silver bells and cockle shells,
And pretty maids all in a row.