-logy — Definition and Word History
Distinguishes unrelated sluggish logy from the bound learned element.
Separate adjective and noun combining-form entries- AUTHOR / EDITOR
- Merriam-Webster Editors
- YEAR
- 2026
- PUBLISHER
- Merriam-Webster
PERMANENT DISPUTE RECORD
ALL DISPUTES ↗One scholarly question. Every attached source. The present editorial state, without pretending the last word has been written.
No evidence reviewed here supports that representation. Merriam-Webster calls -logy a noun combining form and explains that a hyphenated entry is a word element forming part of a compound; the historical forms are likewise evidenced within larger formations. The unrelated adjective logy “sluggish” has a different history.
/-lədʒi/ · noun combining form
A bound English word element used in formations involving discourse or expression and in names of doctrines, theories, sciences, and fields of study.
DIRECT CLAIM EVIDENCE
A citation is not a vote. Each record says whether the work supports, challenges, contradicts, or contextualizes the position—and identifies the exact locus used.
Distinguishes unrelated sluggish logy from the bound learned element.
Separate adjective and noun combining-form entriesDefines a hyphenated entry such as -logy as a word element that forms part of a compound.
Combining Forms, Prefixes, and SuffixesShows the historical element inside larger words rather than as an autonomous token.
Middle English quotations in etimologieEvery stage retains the leading hyphen, and the attestation ledger identifies host-word evidence rather than inventing standalone tokens.