Of [the four types of “svarita”, i. e.] “abhinihita”, “prāśliṣṭa”, “jātya”, and “kṣaipra”, followed by a high-pitched or circumflex, a quarter-mora quantity is made to fall [below the normal level of low-pitch accent], and that [phenomenon] is called “vikampita” ʻoscillationʼ by the wise. (pp. 437-438) - Deshpande (1997)