This is the 4145th most frequent Russian word.
речицкого
"Речицкого" is a possessive adjective form in Russian, meaning "of Rechitsky" or "belonging to Rechitsky," typically referring to a name or origin (e.g., related to Rechitsa, a place).
Here, 'речицкого' is an adjective derived from 'Речица', possibly a location, modifying 'преподавателя', making it mean a teacher from Rechitsa or related to Rechitsa.
Вы сдавали отчет у речицкого преподавателя?
Did you submit the report to the Rechitskiy teacher?
In this instance, 'речицкого' is used as an attributive adjective for 'производства', indicating the origin or relation to Rechitsa.
На выставке были продукты речицкого производства.
At the exhibition, there were products of Rechitskiy manufacture.
Here, 'речицкого' functions as a descriptive term for 'архитектора', signifying the architect's association with Rechitsa.