from The American Heritage® Dictionary of the English Language, 4th Edition
- n. The collection and study of postcards.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The study and collection of postcards.
From Greek deltion, diminutive of deltos, writing tablet, letter.(American Heritage® Dictionary of the English Language, Fourth Edition)
Formed by suffixing the Ancient Greek δελτίον (deltion; the diminutive form of δέλτος, deltos, “writing tablet”) with the English -logy. (Wiktionary)