Seashells in their habitats tend to come in pairs. The
creatures that make use of this kind of outer body, invertebrates all, like
clams and mollusks, belong to the biological class called Bivalvia. Our word “valve” comes from there and originally meant,
in Latin, a section of a revolving door. Bivalvia
dates to the seventeenth century and means “halves of a hinged shell” (Online
Etymology Dictionary (OED)). What happens when clams shuffle off this mortal
coil is that the hinge eventually breaks; what we then collect on the seashore
are the halves, not the whole.
The most likely origin of the phrase, “that warms the
cockles of my heart,” originated in 1660 per OED. “Cockle,” as a synonym for “shell,”
has lost currency if you ask Google’s Ngram facility, which tracks words used
in writing in the 1800-2000 period: it was used nearly seven times more frequently
in 1809 than in 2000, and even in old times, “shell” was much more popular. Nonetheless,
we still have that song, Molly Malone:
In Dublin's fair city, where the girls are so pretty
I first set my eyes on sweet Molly Malone
As she wheeled her wheel-barrow
Through streets broad and narrow
Crying cockles and mussels, alive, alive-O!
The legend of Molly Malone, who died young of a fever,
produced the belief that such a lass actually lived once in the seventeenth
century. Scholars demur, but the Dublin Millennium Commission opted for
reality, at least that of the heart. It proclaimed that a real Mary Malone, who
died on June 13, 1699, had been the original—and declared June 13 as Molly Malone
Day—and we’d say Cockles and Mussels Day. Mussels are yet another kind of
shellfish. And as for Molly, I owe that to Brigitte—who started to sing the
song as I was reading the first version of this post to her.
Cockle comes to us from Old French, coquille , Shell from Old English sciell—and the predominance of “shell” is probably due to the fact
that eggs are much more commonly consumed than mollusks.
The image I am showing, depicting the Giant Atlantic Cockle,
photographed by Andrea Westmoreland (link), makes it plain how the bivalve
creatures resemble the heart shape. The next question then becomes, what does
warmth have to do with these cockles? Turns out that closed shells, when
heated, begin to open. Therefore whatever “warms the cockles of my heart” causes
my heart to open in sympathy and in approval.
The inspiration for this post? Last night late I spread a
minute amount of Smucker peanut butter on a single Trisket and took it to
Brigitte. She’d said that she was getting cold. “Something to warm the cockles
of your heart,” I said, handing her this tiny snack. And then got to wondering
about those cockles.