Gender of nouns in Latin
In Latin, there are three noun genders, which do not always coincide with the gender of equivalent words in other languages. The gender must be indicated in the dictionary form by one of three letters: m, f, or n.
- Genus masculinum (m) — masculine gender. Includes names of months, mountains, winds, large rivers, peoples, and professions.
- Genus femininum (f) — feminine gender. Includes names of countries, cities, islands, gemstones, and trees.
- Genus neutrum (n) — neuter gender. Includes names of metals, chemical elements, fruits, as well as indeclinable words.
There are characteristic nominative endings that help suggest the gender: -us mostly indicates the masculine gender (processus — process), -a the feminine (fovea — pit), and -um, -on, -en, -u the neuter (foramen — opening). However, the definitive determination of gender and declension type is made using the genitive form.
Cases and numbers
In Latin, there are six cases:
- Nominativus — nominative;
- Genitivus — genitive;
- Dativus — dative;
- Accusativus — accusative;
- Ablativus — ablative;
- Vocativus — vocative (rarely used).
In medical terminology, only two cases are actively used: nominativus and genitivus. There are two numbers in Latin: singular (numerus singularis, sing.) and plural (numerus pluralis, plur.).
Five declensions and their features
The sign of a declension is the ending of the genitivus singularis. Distribution of endings by declension:
- 1st declension: Nom. -a, Gen. -ae; feminine gender only. Example: costa, costae, f — rib.
- 2nd declension: Nom. -us, -er, -um, Gen. -i; masculine and neuter gender. Example: musculus, musculi, m — muscle.
- 3rd declension: Nom. various endings, Gen. -is; all three genders. Example: foramen, foraminis, n — opening.
- 4th declension: Nom. -us, -u, Gen. -us; masculine and neuter gender. Example: processus, processus, m — process.
- 5th declension: Nom. -es, Gen. -ei; feminine gender only. Example: facies, faciei, f — face, surface.
Dictionary form and stem determination
The dictionary form of a noun consists of three components:
- the nominative singular form (nominativus singularis);
- the ending of the genitive singular (genitivus singularis); if the stem changes, the full word is given;
- the letter designation of the gender — m, f, or n.
Examples of entries: ramus, i, m — branch; lanx, lancis, f — scale, dish; ligamentum, i, n — ligament; pulmo, onis, m — lung; ala, ae, f — wing.
The practical stem is the part of the word to which indirect case endings are attached during declension. It may not coincide with the historical stem and is determined by dropping the genitivus singularis ending. For example: incisura, ae → stem incisur-; sulcus, i → stem sulc-; tuber, eris → stem tuber-; sinus, us → stem sin-; facies, ei → stem faci-.
Agreement of a noun with an attribute
Agreement means that the modifying word is put in the same gender, number, and case as the head noun. Algorithm for constructing a term:
- write the noun in the required case and determine its gender from the dictionary form;
- choose the adjective form corresponding to the gender, number, and case of the noun;
- if there is an incongruous attribute, put the modifying noun in the genitivus.
Two types of attributes are distinguished. An congruous attribute is an adjective that agrees with the noun in gender, number, and case. An incongruous attribute is a noun in the genitive case that does not change when the head word changes.
Construction of an anatomical term
Let's consider the translation of the term "jugular notch of the sternum":
- The head word is incisura, ae, f (notch), feminine gender.
- The adjective "jugular" is chosen in the feminine form — jugularis.
- The word "sternum" (sternum, i, n) is put in the genitivus singularis — sterni.
Final term: incisura jugularis sterni. The word order follows the models: "noun + congruous attribute + incongruous attribute" or "noun + incongruous attribute + congruous attribute".
Key points
- In Latin, there are three genders: masculinum, femininum, neutrum; the gender is indicated in the dictionary by the letters m, f, n.
- There are six cases, but in medical terminology, primarily nominativus and genitivus are used.
- The type of declension is determined by the genitivus singularis ending: -ae, -i, -is, -us, -ei.
- The dictionary form includes the Nom. sing., the Gen. sing. ending, and the gender designation.
- The practical stem is found by dropping the genitive ending.
- A congruous attribute is expressed by an adjective, while an incongruous one is expressed by a noun in the genitive case.
- An adjective agrees with a noun in gender, number, and case, rather than mechanically repeating its ending.
- Latin terminology is built on strict models, which ensures the unambiguity of medical names.