= strengthening, n. 2. Obsolete.

One who or that which confirms.

A means of establishing or strengthening.

Something that gives strength or support; a source or means of strength.

Something that increases force, degree, effectiveness, or power; an intensifier; an augmenter.

A strengthening or fortifying agent or measure; esp. in Medicine = corroborant, adj. n. Obsolete.

That which makes a person or thing strong; a source of (physical or mental) strength. Now only in singular.

That which corroborates; a corroborative circumstance; †a corroborative agent (obsolete).

A person who or thing that re-enforces something; = reinforcer, n.

A person who or thing which reinforces.

fig. ‘Backbone’; strength or firmness.