çekim: geçmiş verstopfte · ortaç verstopft · şimdiki verstopft · ulaç verstopfend
köken: From Middle High German verstophen, from Old High German firstopfōn, firstophōn, from Proto-West Germanic *frastoppōn; equivalent to ver- + stopfen. Cognate with Dutch verstoppen, English forstop.
köken: From Old Galician-Portuguese estrenger (13th century, Cantigas de Santa Maria), from Latin stringere (“tighten”). Cognate with Portuguese estringir and Spanish estreñir.