Dear emanuela: In browsing dictionary to see if I could find any words with same root as "calare" I ran across an old friend:

calamary
n.,
pl. 3mar#ies 5L calamarius, of a writing reed < calamus, a reed, pen: see CALAMUS6 a squid: so called from its pen-shaped skeleton
(not the squid which does not please my palate, the reed with which ancients wrote. And made what would would call
"typos" but they called "lapsus calami".