समूर्तकsamūrtaka(prob.) w.r. for संवर्तक Ma1rkP.
(probably) wrong reading for संवर्तक Ma1rkP.
कोशःDictionaries
Every entry for a word in Apte, Monier-Williams, Macdonell and the Dhātupāṭha, with their abbreviations spelled out, and an analysis of its forms.