Where does “swamp” come from?

swamp (Old High German) comes from Old English swamm, from Proto-Germanic *swammaz, from Proto-Indo-European swombh- — sponge, tree-fungus, swamp.

Ancestry of “swamp”, step by step

StepLanguageWordMeaning
1Old Englishswammmushroom, fungus; sponge; first/third-person...
2Proto-Germanic*swammaz—
3Proto-Indo-Europeanswombh-sponge, tree-fungus, swamp

Words derived from “swamp”

Every word from Proto-Indo-European swombh- →Every word from Proto-Germanic *swammaz →Every word from Old English swamm →