Used to suggest or state tentatively that something may be the case (often the opposite of something previously implied).
Used in questions when the speaker does not know for sure if the listener will have an answer.
Used to introduce a contradiction; on the contrary.
Somewhat, fairly.
Introducing a qualification or clarification; more precisely. (Now usually preceded by or.)
Used to specify a choice or preference; preferably, in preference to. (Now usually followed by than)
To prefer; to prefer to.