deltiology
noun
- the study of and hobby of collecting postcards
Wiktionary
Pronunciation: /ˌdɛltɪˈɒlədʒɪ/
noun
Etymology: Formed by suffixing the Ancient Greek δελτίον (deltíon) (deltion; the diminutive form of δέλτος (déltos), deltos, “writing tablet”) with the English -logy.
- The study and collection of postcards.