Vṛddhi
Strongest grade of vowel gradation / From Wikipedia, the free encyclopedia
Vṛddhi (also rendered vr̥ddhi)[1] is a technical term in morphophonology given to the strongest grade in the vowel gradation system of Sanskrit and of Proto-Indo-European. The term is derived from Sanskrit वृद्धि vṛddhi, IPA: [ˈʋr̩d̪ːʱi], lit. 'growth',[lower-alpha 1] from Proto-Indo-European *werdʰ- 'to grow'.[2]