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A Grammatical Dictionary of Botanical Latin

-ys: nouns ending in -ys (sg. generally f. III)

1. The Greek word for mouse and also rat is mys, gen. sg. myos (s.m.III), a noun of the third Greek declension (related to Latin 'mouse:' mus, gen. sg. muris, q.v.) is sometimes rendered into Latin words ending in -mys.

The following is a paradigm made by adding the Latin Third Declension endings to the stem my-:

mys, gen.sg. myis (s.m.III), q.v., mouse, q.v. and rat.

singular plural singular plural Nom. mys myes Calomys Gen. myis [myum] [myium] Calomyis Dat. myi myibus Calomyi Acc. myem myes Calomyem Abl. mye myibus Calomye

myidion,-i (s.n.II), abl. sg. myidio, the diminutive of mys: little mouse (my-idion).

Calomys americanus, the deer-mouse; Oryzomys palustris, the rice-rat; Peromyscus californicus, a deer-mouse; Megamys patagonensis, a fossil rodent; Antechinomys laniger, the little jerboa.

NOTE: Steyskal (1969) used this noun to display "examples of irregularity in genitive endings [which] pertain to parasites whose specific names are formed from names of host-genera ending in the word 'mys.'"

The host genera were Apomys; Cynomys; Dipodomys; Dremomys; Heteromys; Hesperomys; Otomys; Phascolomys; Pitymys; Rhabdomys; Scotinomys; Thallomys; Thomomys; Zelotomys.

epithets: gen.sg. ending in -myis

gen.sg. endings (correct) gen.sg. endings (other) phascolomyis -mydis: dremomydis hesperomydis, otomydis, < thallomyis pitymydis [declined like -chlamys] -mysi cynomysi, thomomysi (mys + i) -myia otomyia (my + ia) -mius dipodomius (m + ius) -muris thomomuris (the gen.sg. of the Latin)

The Greek spelling is gen. myos; acc. myn; nom.pl. myes, acc. pl. myas, dat. pl. mysi and mysi(n), etc. indicating this noun is not of the sort with the genitive in -mydis. The majority of epithets were (incorrectly) composed in -mydis, however, and other variants.

2. Greek nouns ending in -us (upsilon), gen.sg. -udos, rendered into Latin as -ys, -ydis (s.f.III), abl.sg. -yde;

-chlamys,-ydis (s.f.III), mantle [> Gk. chlamys,-ydos, s.f.III a short cloak or mantle (Lat. paludamentum); see '-chlamys,-ydis: in Gk. comp.';

singular plural Nom. Coleochlamys Gen. Coleochlamydis Dat. Coleochlamydi Acc. Coleochlamydem Abl. Coleochlamyde

Aulacochlamys (alga); Basichlamys (alga); Coleochlamys (alga);

Ecdysichlamys (alga); Gloeochlamys (alga); Keriochlamys (alga);

Leptochlamys (alga); Lobochlamys (Chlorophyceae, Protist);

Nephrochlamys (alga); Oogamochlamys (Chlorophyceae, Protist);

Phaeoschizochlamys (alga); Pyramichlamys (alga); Schizochlamys (alga); Sklerochlamys (alga); Tetrachlamys (alga); Vitreochlamys (alga).

Chlamydia,-ae (s.f.I) (Chlamydiaceae, order Chlamydiales, class and phylum Chlamydiae). A genus of three species: Chlamydia trachomatis (of trachoma), C. suis (of pigs) and C. muridarum (of mice).

NOTE: -stachys,-ydis (s.f.III), spike, is an exception in that in Greek

the genitive is '-yos' (see next entry).

3. Greek nouns ending in -us (upsilon), gen. sg. -uos, rendered into Latin as -ys,-yis;

-pitys,-yis (s.f.III), pine-tree [> Gk. pitys,-yos, s.f.III, a pine-tree (Lat. pinus)].

singular plural Nom. Hypopitys (s.f.III) Gen. Hypopityis Dat. Hypopityi Acc. Hypopitym Abl. Hypopitye

Sciadopitys,-yis (s.f.III)

-botrys,-yis (s.m.III), cluster or bunch of grapes (Lat. racemus).

Gliobotrys; Heterobotrys; Hyalostachybotrys; Stachybotrys; see -botrys.

-drys,-yis (s.f.III), oak; Halidrys (genus of marine plants, alga); Phycodrys (alga); Pseudophycodrys (alga).

-pitys,-yis (s.f.III), pine.

EXCEPTION: botanical usage for Stachys L. (s.f.III) Horse-nettle, which would be Stachyis in the gen. sg., is rather Stachydis [> Gk. stachys,-yos (s.m.III), spike, an ear of corn [Lat. spica; note the Gk. noun is considered feminine in botanical usage];

singular plural singular plural Nom. -stachys -stachydes Nom. Stachys Gen. -stachydis -stachydum Gen. Stachydis Dat. -stachydi -stachydibus Dat. Stachydi Acc. -stachydem -stachydes Acc. Stachydem Abl. -stachyde -stachydibus Abl. Stachyde

Subfamily: Stachydoideae (Stachys,-ydis).

NOTE: Gk. compounds using stachys as a prefix or suffix may use stachy-, stachyo-; -stachys,-ydis; -stachyus,-a,-um; see stachy-.

4. Greek nouns rendered in Latin Third Delcension as -yx, gen. sg. -ychis: bostryx,-ychis (s.m.III) [Gk. bostryx, gen. sg. bostrychos (s.m.II), (note Gk. xi of nominative becomes chi in the other cases)];

singular plural singular plural Nom. bostryx bostryches Nom. Bostryx Gen. bostrychis bostrychum Gen. Bostrychis Dat. bostrychi bostrychibus Dat. Bostrychi Acc. bostrychem bostryches Acc. Bostrychem Abl. bostryche bostrychibus Abl. Bostryche

Bostryx,-ychis G. Targione-Tozzetti, a genus of algae.

5. Latin nouns of the Third Declension ending in -yx, gen. sg. -ycis;

singular plural

Nom. calyx calyces calyx (s.m.III) Gen. calycis calycumDat. calyci calycibus

Acc. calycem calyces Abl. calyce calycibus


A work in progress, presently with preliminary A through R, and S, and with S (in part) through Z essentially completed.
Copyright © P. M. Eckel 2010-2017

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