'-osity' is an abstract noun word ending created from the ending of an '-ous' adjective.
「-osity」は語尾が「-ous」の形容詞から作られる抽象名詞の語尾。
I've got something on you.
俺はお前の尻尾をつかんでいる。
The dog wagged its tail eagerly.
犬は盛んに尾を振った。
The primates include not only the apes, but also man.
霊長類は尾の無いサルだけでなく人間も含む。
The tail of a fox is longer than that of a rabbit.
きつねの尾はウサギのより長い。
Ken is the best guy to communicate with Mr. Ogata. That is, if he prepares presentation materials.
尾形氏と話をするのに、ケンは適任だと思います。ただし、プレゼンテーション資料を準備すればの話です。
You just have to understand what sort of thing the suffix '-osity' is.
「—osity」という接尾辞がどういうものかを理解すれば良い。
I saw the white trail of his frozen breath.
私には彼の凍った息が白く尾を引くのが見えた。
He expects to succeed in winning a scholarship by studying hard.
彼は一生懸命勉強して首尾よく奨学金を得るつもりだ。
Suffixes, 1: "-ion" creates nouns that show the meaning of 'action, state, process, results,' and so on.
接尾辞について、1:【-ion】「行動、状態、過程、結果」などの意を表す名詞を作る。
A fish swims by moving its tail.
魚は尾を動かして泳ぐ。
The dog ate the fish, bones, tail and all.
犬はその魚を骨も尾も全部食べた。
Just when she said "Ooh, what a beautiful star," a star fell across the sky and a blue light quickly fainted in a diagonal trajectory, dragging behind a faint tail.