This disconnection, whose phenomena are amazing, proceeds from an unexplored, possibly an unexplorable mystery.
Why, it's not going to hurt you to admit you know Catrock Canyon is—unexplorable.
Other water courses were passed, running away into unknown and unexplorable wilds.
1580s, "to investigate, examine," a back-formation from exploration, or else from Middle French explorer (16c.), from Latin explorare "investigate, search out, examine, explore," said to be originally a hunters' term meaning "set up a loud cry," from ex- "out" (see ex-) + plorare "to cry."
But second element also explained as "to make to flow," from pluere "to flow." Meaning "to go to a country or place in quest of discoveries" is first attested 1610s. Related: Explored; exploring.
v. ex·plored, ex·plor·ing, ex·plores
To examine for diagnostic purposes.