functioning
UK: ˈfʌŋk.ʃən.ɪŋ | US: ˈfʌŋk.ʃən.ɪŋ
adj. operating or working correctly
n. the action or process of performing a task or role
The word "functioning" derives from the Latin functio (performance, execution), via the verb fungi (to perform). The root "function" entered English in the 16th century, originally denoting religious duties. The suffix "-ing" is an Old English present participle marker, here indicating ongoing action. The modern sense of "operating correctly" emerged in scientific and mechanical contexts during the 19th century.
The machine is functioning normally after repairs.
His heart stopped functioning during the surgery.
A functioning democracy requires active citizen participation.
The team assessed the functioning of the new software.
Despite its age, the clock is still functioning perfectly.