fable: Story designed to teach a useful truth. From Latin “fabula”=discourse, plot of a play < “fari”=to speak.
faith: Strong belief in the truth of a proposition even in the absence of proof. Often religious in nature. From Latin “fidere”=to trust.
fanatical: Frenzied devotion to something. Latin “fanaticus” < “fanum”=temple. Originally acting as if possessed by a demon.
fang: Sharp tooth or an animal used for puncturing. From Old English “fang” < “gefangen”=to seize, grasp, or take (fang hold of).
farce: A comedy based on improbable situations. From Middle French “farce”=comic interlude < Latin “farcere”=to stuff or pad out
farrago: Confused group; medley, mixture, or hotchpotch. Latin “farrago”=mixed cattle fodder < “farr-“=corn.
fault: A failing or a deficiency in people or things. From Old French “faute”=deficiency < Latin “fallare”=to deceive.
favor/favour: Act of kindness, not seeking a reward. From Old French “favor”=goodwill, kindness < Latin “favere”=to regard with good will.
fawn: To seek favor by flattery or acting slavishly. From Old English “fagnian”=to rejoice, or show happiness like a dog wagging its tail.
fecund: Capable of producing abundant offspring, plant or animal. Latin “fecundus”=fruitful.
felicide: The act of killing of a cat. From Latin “feles”=cat +”-cide”=”killer, slayer, or cutter.
festival: Event where there are performances of films, plays, music etc, usually in the same place each year. From Latin “festum”=feast.
fever: (a) State of enhanced or heightened activity. (b) Body temperature above normal. From Latin “febris”=?heat/burn.
filch: To take something furtively or casually. From Middle English “filchen”=to attack as a group.
filly: Young female horse under 4 years. Thought to be from Old Norse “fylja,” feminine of “fole,” and ultimately related to Greek “polos.”
fire: Rapid chemical change that releases heat and light that is accompanied by flames. From Old English “fyr”=fire < Indo-European “peuor”=fire.
firebrand: Person who causes unrest, stirs trouble, or is very energetic. From Old English “fyre”+fire + “brond”=burning torch.
flight: A journey in a plane or space vehicle.From Old English “flyht” < “fleogan”=to soar through the air.
flocculent: Covered with down or a short, woolly substance. From Latin “floccus < :”flock”=piece of wool + “-ulent”=abounding in; full of.
flock: Group of animals, chiefly birds, sheep, or goats. From Old English “flocc” < Old Norse “flokkr”=an assembly of people.
flotsam: Floating wreckage of a sunk ship. From Old French “floter”= to float + Latin “-ation(em)”=pertaining to.
flounder: To stumble around, struggle, or act clumsily. Perhaps from Dutch “flodderen”=to flop around, or Old French “fondrer.”
flout: To mock, jeer, insult; laugh at with contempt, derision. ? Middle English “floute” < Old French “fleuter”=to play a flute.
flu: Short form of “influenza.” From Middle Latin “influentia”=influenced < Latin “in”=in + “fluere”=to flow.
foible: Minor flaw or shortcoming in character or behavior. From Old French “foible”=feeble < Latin “flebilis”=wept over < “flere”=weep
follower bot: A follower on Twitter that is automated. Usually spam or marketing. “Bot” is shortened from the Czech “robota”=work/labor.
folly: (a) Quality or state of being foolish; (b) a pointless building or structure. From Old French “folie”=fool.
foreigner: Someone from a different county or nation. From Old French “forain”=outside + “-er”=suffix to describe “one who is.”
forget: To lose memory of things. From Old English “forgietan” < “for_=away/off + “gietan”=to hold or grasp. Literally to let go of.
fork: Small hand tool with prongs used for eating. From Old English “forca” < Latin “furca”=a fork for hay or a gallows or yoke.
fortitude: Strength of will to allow courage under stress or while in pain. From Latin “fortem”=strong + “-tude”=suffix for an abstract noun.
found: Discovered something that was lost or came across something by chance. Past ppl. “find” < Old English “findan”=to come upon.
founder: To fail or come to grief or become submerged. From Old French “fondrer”=plunge to the bottom < Latin “fundus”=bottom.
free: Without charge or obligation. From Old English “freo”=free, exempt, not in bondage. Also meant noble and joyful.
Friday: Day of the week from Old English “frigedag”=Frigga’s Day. Norse goddess, wife of Odin. Old Norse “Frigg”=beloved wife.
frippery: Something showy, frivolous, or nonessential. From Middle French “friperie”=old clothes store > Old French “frep”=rag.
frown: Facial expression of furrowed brows used to show displeasure. From Old French “froignier,” possibly from Gaulish “*frogna”=nostrils.
fusillade: Rapid simultaneous discharge of firearms. French “fusiller”=shoot < “fusil”=steel for tinder-box < Latin “focus”=fire.
fusion: Melding of separate qualities, ideas, or things. From Latin “fundere”=to pour (as with molten metals.)
fustian: Ridiculously pompous jargon. Originally cloth used sometimes as stuffing material. ” From “Fostat,” Cairo suburb where it was made.
futile: Incapable of producing any result; ineffective; useless. Latin “futtilis”=leaky, untrustworthy, useless < “fundare”=to pour out.