Schlep is Yiddish shlepen, "to drag," and it entered English in 1922 — in Joyce's Ulysses, of all places. The schl- opening is a Yiddish signature in English, matched by schmaltz, schmuck and schnoz: German and Yiddish tolerate the cluster, English had largely lost it, and the spelling with sch- announces the source.
Behind the Yiddish is Middle High German sleppen, related to Old High German slifan, "to slide, slip" — which is cognate with English slip. So schlep and slip are the same Germanic root arriving by very different routes, one inherited directly and one via a thousand years in central Europe and a detour through the Yiddish of immigrant New York. The noun schlep, meaning a loser, is later, from 1939, shortened from schlepper.
schlep (v.) "to carry or drag," 1922 (in Joyce's "Ulysses"), from Yiddish shlepen "to drag," from Middle High German sleppen, which is related to Old High German sleifen "to drag," and slifan "to slide, slip" (cognate with Middle English slippen ; see slip (v.)). Related: Schlepped ; schlepping . also from 1922 schlep (n.) "stupid person, loser," 1939, short for schlepper "person of little worth" (1934), in Yiddish, "fool, beggar, scrounger," from schlep (v.) "to carry or drag." For sense evolution, compare drag (n.) "annoying dull person." also from 1939
schlep came in through Later and wider borrowings, and its spelling follows that family's conventions.
What gives it away on the page
| schl-, schm-, chutz- | Yiddish and Hebrew, where ch is a throat sound.schlep, schmaltz, chutzpah, kosher, bagel |
Later and wider borrowings in the spelling guide · guess another word's family