forth / fôrth
1. forward; onward in time, place or manner; out from a starting point
Who ventures forth, succeeds.
2. out to become visible or noticeable
Cease to inquire what the future has in store, and take as a gift whatever the day brings forth.
Horace, 65 BC – 8 BC
3. (obsolete) away from a place
1. Forth, a river in Scotland
In Alan’s view, besides, the hunt must have now greatly slackened; and the line of the Forth and even Stirling Bridge, which is the main pass over that river, would be watched with little interest.
From “Kidnapped” by Robert Louis Stevenson, 1850 – 1894
1. archaic, away from a place; out of
You shall become a black poodle and have a gold collar round your neck, and shall eat burning coals, till the flames burst forth from your throat.
From “The Pink” by Jacob Grimm, 1785 – 1863, and Wilhelm Grimm, 1786 – 1859
An Anglo-Saxon adverb akin to the Anglo-Saxon noun/adjective/adverb fore (front/prior/forward).
Thank you to Allen Ward for providing the etymologies of forth and fourth.