rainworm

== English == === Etymology === From Middle English [Term?], from Old English reġnwyrm, from Proto-Germanic [Term?]. Analysable as rain +‎ worm, because the worm has the habit of surfacing on top of the saturated soil after rainfall. Cognate with Dutch regenworm, Old High German reganwurm, whence German Regenwurm. === Noun === rainworm (plural rainworms) An earthworm.