Bellwether \BEL-weth-uhr\, noun:
A leader of a movement or activity; also, a leading indicator of future trends.
Bellwether is a compound of bell and wether, "a male sheep, usually castrated"; from the practice of hanging a bell from the neck of the leader of the flock.
Diablerie \dee-OB-luh-ree; -AB-\, noun:
1. Sorcery; black magic; witchcraft.
2. Representation of devils or demons in words or pictures.
3. Mischievous conduct; deviltry.
Diablerie comes from the French, from diable, devil, from Latin diabolus, from Greek diabolos, "slanderer," from diaballein, "to slander," literally "to throw across," from dia-, "across" + ballein, "to throw."
Triskaidekaphobia \tris-ky-dek-uh-FOH-bee-uh\, noun:
A morbid fear of the number 13 or the date Friday the 13th.
Triskaidekaphobia is from Greek treiskaideka, triskaideka, thirteen (treis, three + kai, and + deka, ten) + phobos, fear.
In Christian countries the number 13 was considered unlucky because there were 13 persons at the Last Supper of Christ. Fridays are also unlucky, because the Crucifixion was on a Friday. Hence a Friday falling on the thirteenth day is regarded as especially unlucky.
Gustatory \GUS-tuh-tor-ee\, adjective:
Of or pertaining to the sense of taste.
Gustatory derives from Latin gustatus, "taste," from gustare, "to taste, to take a little of." Other words that have the same root include disgust and gusto ("vigorous and enthusiastic enjoyment").
Hardscrabble \HARD-skrab-uhl\, adjective:
1. Yielding a bare or meager living with great labor or difficulty.
2. Marked by poverty.
Hardscrabble is formed from hard (from Old English heard) + scrabble (from Dutch schrabbelen, "to scratch").
Update - Apologies for absence - life has been even busier than usual, with a lot of work, finishing and sending my latest book, WALKS IN THE FOOTSTEPS OF DAPHNE ...