Exact historical dictionary sense
Possible in Webster's 1913 dictionary
The 1913 record labels possible as adjective. Its source-bounded etymology and selected historical definition appear below.
[F., fr. L. possibilis, fr. posse to be able, to have power; potis able, capable + esse to be. See Potent, Am, and cf. Host a landlord.]
Cross-verified historical senseIn Webster's Revised Unabridged Dictionary (1913), "possible" is labeled adjective. Its etymology is recorded as: "[F., fr. L. possibilis, fr. posse to be able, to have power; potis able, capable + esse to be. See Potent, Am, and cf. Host a landlord.]" The selected historical definition says: "Capable of existing or occurring, or of being conceived or thought of; able to happen; capable of being done; not contrary to the nature of things; -- sometimes used to express extreme improbability; barely able to be, or to come to pass; as, possibly he is honest, as it is possible that Judas meant no wrong."