say it: stem
stem is a noun and verb meaning "(linguistics) the form of a word after all affixes are removed". It carries 10 recorded senses.
a slender or elongated structure that supports a plant or fungus or a plant part or plant organ
grow out of, have roots in, originate in
“The increase in the national debt stems from the last war”
remove the stem from
“for automatic natural language processing, the words must be stemmed”
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for stem come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.