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We study a compact nucleus embedded in an early-type dwarf galaxy,MATLAS-167, which is in the process of disruption by the tidal force of theneighboring giant S0 galaxy, NGC 936, in a group environment. Using the imagingdata of the MATLAS survey, we analyze the stellar tidal tail of MATLAS-167 andits central compact nucleus, designated as NGC 936_UCD. We find that NGC936_UCD has a luminosity of M$_{g}$ = $-$11.43$\pm$0.01 mag and a size of66.5$\pm$17 pc, sharing the global properties of Ultra Compact Dwarf galaxies(UCDs) but significantly larger and brighter compared to the typical UCDpopulations observed in the Virgo cluster. By integrating the total luminosityof both the tidal stream and MATLAS-167, we estimate that the disrupted dwarfprogenitor possesses a luminosity of M$_{g}$ = $-$15.92$\pm$0.06 mag, a typicalbright dE luminosity. With the help of the optical spectrum observed by theSDSS survey, we derive the simple stellar population properties of NGC 936_UCD:a light-weighted age of 5.6$\pm$0.7 Gyr and metallicity of [Z/H] =$-$0.83$\pm$0.3 dex. Our findings suggest that tidal threshing is a possibleformation mechanism of bright UCD populations in close proximity to giantgalaxies.

The creation of a massive UCD by tidal threshing from NGC 936