Reconstruction:Proto-Slavic/-pъ

Etymology 1
Nominal suffix of origin, expressing muffling or resonant nuance to the specified sound. Exhibits parallels in other Indo-European languages, cf. 🇨🇬 or 🇨🇬, however, no common ancestral origin could be established. Most of the derived terms with this ending were later grammaticized.

Etymology 2
. There have been various ad hoc attempts to explain concrete derivatives.

Encountered as an extension to roots in parallel to resembling derivatives with other extensions, e.g.: Possibly inherited from 🇨🇬, cf. 🇨🇬. Compare 🇨🇬 attested in 🇨🇬,, , etc.
 * 🇨🇬: compared with 🇨🇬,.
 * 🇨🇬: compared with 🇨🇬,, and forms related to 🇨🇬.