"Of persons and expectations, etc.; Hopeful or confident with reference to some particular issue" (OED).

"A person who rides the leading, left-hand side horse drawing a coach or carriage, esp. when only one pair is used and there is no coachman" (OED).

"Meaning in a weeks time" (OED).

"Conceited, in this case and usage is not just thinking well of oneself but, being witty, amusing; employing or characterized by conceits" (OED).

"Something carried, sustained, endured, etc" (OED).