cumulus.
heap/pile/mound/aggregate/mass/accumulation; wave (water); surplus, increase; finishing touch, consummation, pinnacle, summit, peak, crown; ending of speech;
Meaning & usage
heap, pile
surplus
summit
Where this word comes from
Possibly formed as a diminutive of Proto-Indo-European *ḱuh₁-mós (“heap”), from *ḱewh₁- (“to swell”) + *-mós. Cognates from this root include Ancient Greek κῦμᾰ (kûmă, “swell, wave”), Lithuanian saunas (“firm, fit, solid, capable”), and Sanskrit श्वयति (śvayati, “swell”). However, Schrijver thinks the evidence for deriving cumulus from *ḱewh₁- is weak. Proto-Indo-European *-uH- usually became Latin -ū- before a consonant, but De Vaan argues -u- might be the outcome of a regular sound change that shortened pretonic long vowels before resonants (discussed in Schrijver) or alternatively, analogy with tumulus.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.