plesiomorphy.
A character state that is present in both outgroups and in the ancestors
Meaning & usage
A character state that is present in both outgroups and in the ancestors
Where this word comes from
Etymology tree Proto-Indo-European *pel- Proto-Indo-European *pelh₂-der. Ancient Greek πλησίος (plēsíos) Ancient Greek πλησίον (plēsíon)der. English plesio- Ancient Greek μορφή (morphḗ)bor. English -morphy English plesiomorphy From plesio- + -morphy.
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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.