Meretricious

meretricious \ˌmer-ə-ˈtri-shəs\ adjective: 1. of or relating to a prostitute, having the nature of prostitution {meretricious relationships}, 2 a. tawdrily and falsely attractive {the paradise they found was a piece of meretricious trash — Carolyn See}, b. superficially significant; pretentious {scholarly names to provide fig-leaves of respectability for meretricious but stylish books — Times Literary Supplement}

Etymology: Latin meretricius, from meretric-, meretrix prostitute, from merēre to earn

Meretricious reminds me of matronly. Maybe it’s the shared initial m and internal tr.