valid-, val-, vale-, -vail, -valent, -valence

To recover from sickness, regain health, to get better or stronger.

1. Recovering health and strength after illness; on the way to recovery; still in need of nursing.
2. One who is recovering from sickness.

1. To act against or resist with equal force; to counterbalance.
2. To avail or prevail against; to have force or be of effect against; to counterbalance.

To lessen or annul the value of.

The reduction of the official value of a currency in terms of gold or of another currency.

1. The fact of being the same, effectively the same, or interchangeable with something else.
2. In logic, the relationship that holds for two propositions that are either both true or both false, so that the affirmation of one and the denial of the other results in contradiction.
3. The relationship between two statements, both of which are either true or false, and each of which can be proven from the other.

The state or condition of being equivalent; equality.

1. Equal, as in force, value, or meaning.
2. Having identical or similar effects.
3. A state of being essentially equal or equivalent; equally balanced.

Characterized by being equal in power, force, or value.