What this suffix does
-wrought forms compound adjectives that describe something made or shaped through work, and by extension the emotional or psychological state produced by excessive working or agitation. Well-wrought, overwrought, hard-wrought, hand-wrought, finely-wrought — each compound describes the degree and quality of working. "Overwrought" is the most important: it has crossed from describing something worked too much into describing a person whose emotions have been worked up to an excessive degree. It is now one of the standard terms for emotional excess in formal and literary writing.