affected (adj.2) Look up affected at Dictionary.com
1530s, "favorably disposed" (now obsolete but preserved in disaffected), past-participle adjective from affect (v.1). From 1610s as "under the influence of, afflicted."
affected (adj.1) Look up affected at Dictionary.com
"artificially displayed," 1580s, past participle adjective from affect (v.2) "make a pretense of." Related: Affectedly.