Bible Dictionaries
Diphthongal

Webster's Dictionary

(a.) Relating or belonging to a diphthong; having the nature of a diphthong.

Bibliography Information
Webster, Noah. Entry for 'Diphthongal'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​d/diphthongal.html. 1828.