What does lagōpūs mean in Latin?

lagōpūs, a noun, means “ptarmigan (a bird); hare's-foot (a herb)”.

What is the genitive of lagōpūs?

The genitive singular is lagōpodis. lagōpūs is feminine, third declension.

In classical Latin, [ɫaˈɡoː.puːs]; in ecclesiastical (church) Latin, [laˈɡɔː.pus].

noun · femininethird declension

lagōpūs f (genitive lagōpodis)

Classical[ɫaˈɡoː.puːs]Ecclesiastical[laˈɡɔː.pus]

ptarmigan (a bird)
[…], et praecipua sapore lagopus. Pedes leporino villo nomen hoc dedere cetero candidae, columbarum magnitudine. Non extra terram eam vesci facile, quando nec vita mansuescit et corpus ocissime marcescit. Est et alia nomine eodem, a coturnicibus magnitudine tantum differens, croceo unctu cibis gratissima.[…] , the lagopus (ptarmigan) is of culinary notice too. It derives its name from the appearance of its feet, they seem to be covered with hare's fur, it is otherwise white and the size of a dove. It is no easy task having them from their native country to our plate, as they would be taken lifeless and their body wither but too fast. Another bird is known by this name, only different from the quail by its size, it makes for a delicious dish with saffron sauce.77 CE – 79 CE, Plinius Maior, Naturalis Historia X.LXVIII.134
hare's-foot (a herb)

lăgōpūs, ŏdis, f., = λαγώπους,

I. hare'sfoot.

I. An Alpine bird, perh. white grouse, Plin. 10, 48, 68, § 133 (see also glaucopis, Mart. 7, 87).—

II. The herb hare's-foot, Plin. 26, 8, 34, § 53.

From Ancient Greek λαγώπους (lagṓpous), from λαγώς (lagṓs, “hare”) + πούς (poús, “foot”).