Used to form adjectives/adverbs of base adjective's quality; compare English -able, English -some
From Middle Dutch -sam, later also -saem based on the inflected forms, from Old Dutch -sam, from Proto-Germanic *-samaz, from *samaz (“same”). Cognate with English -some, German -sam, Old Norse -samr.
Practice speaking and memorizing "-zaam" and many other words and sentences in Dutch.