-us

DEFINITION of -us

1. forms nouns: condition
2. forms nouns: person

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ETYMOLOGY of -us

latin

Component	Origin	Meaning
-us	Latin -us (-us), masculine singular noun ending (1st conjugation)	Noun-forming suffix — “condition,” “state,” “person/agent” — retained as the Latin masculine noun ending in borrowed medical terms

The suffix entered English in the 1400s as part of Latin borrowings (noun-forming suffix), derived from Late Latin -us, the standard masculine singular ending of the first conjugation, from Proto-Indo-European *-os — related to Greek -ος (-os). The earliest medical borrowings (e.g., abscess, status) appeared in the 1400s–1500s. The root -us (“condition, agent”) connects -us to the entire noun-forming suffixes: abscessus (ab- + cessus $\to$ condition of suppuration/running away), pulsus (puls- + -us $\to$ condition of pulsing/beat), and status (stat- + -us $\to$ state or condition of being). The noun-forming suffix -us appears in a limited but recognizable set of Latin-derived medical terms: e.g., tonus, focus, sensus, status, and abscessus.

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RELATED TERMS to -us

-us	condition	person	-	-
-tic	-	YES, agent	pertaining to	drug

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DERIVATIONS of -us

TABLE definition AS Definition 
WHERE length(filter(roots, (word) => econtains([[]].roots, word))) > 0 AND file.name != [[]].file.name
SORT file.name ASC

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Query

TABLE definition AS Definition
FROM #medroot
WHERE length(filter(definition, (word) => econtains([[]].definition, word))) > 0 AND file.name != [[]].file.name

Med terms dictionary