Modern Greek lemma

Δ

D — “abbreviation of δυτικός”

abbreviation of δυτικός (dytikós, “west, westerly”); abbreviation of δύση (dýsi, “west”); The upper case delta (δέλτα), the fourth letter of the modern Greek alphabet, representing a voiced interdental fricative (/ð/).

Definitions from English Wiktionary via kaikki.org (wiktextract), licensed CC BY-SA 4.0.