callum.
hard/tough skin/hide, callus; callousness, lack of feeling; firm flesh/fruit;
Meaning & usage
A hard or thick substance.
The hardened, thick skin upon animal bodies, hide.
The hard skin or flesh of plants.
The hard covering of soil.
A callus, induration.
Hardness, callousness, insensibility, stupidity.
Where this word comes from
Uncertain, but possibly derived from Proto-Italic *kalnom, from Proto-Indo-European *kal- (“hard”) (perhaps via suffixed zero-grade *kl̥H-no-(m)); see also Old Church Slavonic калити (kaliti, “to harden, cool”), Proto-Celtic *kaletos (“hard”), Sanskrit कलिका (kalikā, “bud”).
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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.