useless trivia: What Word Means: To Impinge On - A Small Amount?

Questions

(It.) - Getting slower.?

- Describes a wide range of 17th century English dances.?

(Ger.) - Rattle.?

- A responding musical phrase (e.g. in a fugue) which exactly reproduces the subject or entry of a theme at the fifth.?

- The completion of 17th and 18th century harmony by adding a keyboard accompaniment indicated by figured bass.?