GrigoryevskiymRussian From location called Grigoryev (Григорьев) or something similar such as Grigoryevo (Григорьево), Grigoryevka (Григорьевка) ultimately from given name Grigoriy.
HrybovmRussian (Ukrainianized) Ukrainianised form of Gribov. Roman Hrybov was the author of the Ukrainian Russian-language phrase «Русский военный корабль, иди нах..й» (Russian warship, go f..ck yourself).