bored (adj.) Look up bored at Dictionary.com
"wearied, suffering from ennui," 1823, past participle adjective from bore (v.2).
Society is now one polished horde,
Formed of two mighty tribes, the Bores and Bored.
[Byron, "Don Juan," 1823]
Meaning "pierced, perforated, cylindrically hollow" is 1510s, from bore (v.1).