second declension
Let an agent explain second declension endings, genders, irregular forms and use in reading and learning Latin and Greek.
Research draft, second pass
A second pass drafted this model: the structure a model of this thing needs, and what is known about it in the world. The line under this one says how the second half was obtained - researched against sources, or recalled without web access, in which case nothing here was read anywhere and every claim is a lead to verify. Unreviewed either way.
Researched by: Claude
Bundle → Layer → Finding → Questions Filled
4 bundles · 8 layers · 8 findings · 16 questions
Forms Endings.
Decline
Paradigm.
Decline
Paradigm.
- What are the case endings for this second declension noun? definition
- How do neuter endings differ? definition
Identify
Recognising the class.
Identify
Recognition.
- How can a noun be identified as second declension from its dictionary entry? definition
- What does the genitive tell us? definition
Exceptions Irregular nouns.
Irregular
Irregular forms.
Irregular
Irregular nouns.
- Which second declension nouns are irregular, such as deus? provenance
- How are they declined? definition
Gender
Feminine exceptions.
Gender
Gender exceptions.
- Which second declension nouns are feminine, such as names of trees? provenance
- How does agreement work with them? definition
Greek Comparison.
Omicron
Greek second declension.
Omicron
Greek second declension.
- How does the Ancient Greek second declension compare with Latin? definition
- Which grammar describes it? provenance
Learning
Practice.
Learning
Practice.
- Which exercises help learners master these endings? action
- Which common errors should be avoided? provenance
Senses Disambiguation.
Other languages
Other declension systems.
Other languages
Other languages.
- Is the second declension of another language, such as Russian or Lithuanian, meant? boundary
- How is it numbered there? provenance
Reading
Reading texts.
Reading
Reading texts.
- How can a form in a text be parsed to find its case and number? action
- Could it belong to a different declension? boundary
Classifiers Filled
- Family
- Thing Registry
- Category
- Cross-cutting context
- Entry kind
- thing
- Plane
- XCT
- Domain
- XCT.REL
- Other names and narrower kinds
- second declension (m/f) noun, second declension irregular noun, second declension neuter noun
What it is Filled
A class of nouns in Latin, and analogous classes in Ancient Greek and other inflected languages, sharing a pattern of endings; in Latin it includes mostly masculine nouns in -us or -er and neuter nouns in -um, with genitive singular in -i, alongside irregular nouns.
Why it exists Filled
Let an agent explain second declension endings, genders, irregular forms and use in reading and learning Latin and Greek.
Distinguishing features Filled
- Noun inflection class
- Masculine and neuter nouns in Latin
- Genitive singular -i
- Some irregular nouns
What robots and AI may and may not do Filled
Must not
- Present irregular nouns as following the regular pattern.
- Mix Latin and Greek second declension endings without saying which language is meant.
- Correct a quoted classical text to fit a grammar rule without noting it.
Only with a human decision
- Changing the text of an edition to normalise forms.
May
- Decline and explain second declension nouns, citing grammars.
- Help learners practise forms and identify exceptions.
Moral aspects Filled
- Learners rely on accurate grammar; errors compound over time.
- Altering classical texts silently damages the record.
Who is affected
- Students and teachers
- Readers of classical texts
Owners Filled
Steward
Nobody: a grammatical class held in common.
Links to other meta-models Filled
parent
- Q7443692 - registry parent class
related
- grammatical declension - category
- Latin grammar - context
- agreement-relation - grammar
- first declension - related class
What else AI and robots need to interact with it Filled
Identity and identifiers required Filled
- Vercy registry: vr.tr.second-declension
- Wikidata: Q133859623 (https://www.wikidata.org/wiki/Q133859623)
Direct properties not applicable Not applicable
Not applicable
Plane XCT: no invented physical properties.
Recognition optional Filled
- Latin nouns in -us, -er and -um
- Genitive singular in -i
- First declension nouns end mostly in -a
- Not physical; tables of noun endings in grammars.
Capabilities and actions required Filled
- decline second declension nouns
- identify gender and stem
- handle irregular nouns
- compare Latin and Greek second declensions
Hazards and failure modes required Filled
- Confusing -us nouns of other declensions
- Missing neuter plural endings
- Misidentifying gender
Standards and interfaces required Filled
- No specific regulation; examination syllabuses set expected forms
Context of use required Filled
- Language learning and philology.
- masculine and feminine second declension nouns
- neuter second declension nouns
- nouns in -er and -ir
- irregular second declension nouns
- Greek omicron declension
Sources Filled
- Wikidata item Q133859623: second declension - identity and sense of the item
- Wikipedia (de): O-Deklination - general description of the item
Open questions
- Should Latin and Greek be separate entries?
- How should paradigm tables be linked?
- How should irregular nouns be listed?
Machine files
Provenance
thing registry research (pass 2) · unreviewed
Built from: models/things/publications/thing-q133859623/spec.json