Word Unit: fem-, femi- (Latin: woman, women; not masculine: neither man nor men)

Related "woman, female" units: anilo-; gyno-; mulie-; virgo-.

Word Unit: femto- [FEM toh] (Danish and Norwegian: fifteen; a decimal prefix used in the international metric system for measurements)

Related "metric" families: yotta; zetta; exa; peta; tera; giga; mega; kilo; hecto; deka; deci; centi; milli; micro; nano; pico; atto; zepto; yocto.

Word Unit: femur-, femuro- (Latin: thigh)
Word Unit: -fend, fend-, fen- (Latin: ward off, to ward off, strike, keep off, guard, protect; from fendere [found only in compounded words])
Word Unit: fenestra-, fenestr- (Latin: window; in anatomy, a small opening in a bone; to bring to light, to show)

A cross reference of other word family units that are related directly, indirectly, or partially with: "opening, hole, cavity, tract, tube": alveolo-; antro-; anu-; celo-; coelio-; concho-; fenestra-; hernio-; hiat-; meato-; ora-; parieto-; poro-; pyl-, pyle-; pylor-; sphinctero-; splanchn-; stomato-; syringo-; uretero-; urethro-; vagino-; ventricul-.

Word Unit: -fer, -ferous (Latin: to bear, to carry; to produce; to bring)

Cross references of word families related to "bear, carry, bring": duc-; ger-; later-, -lation; phoro-; port-.

Word Unit: ferment-, fermento- (Latin: yeast; substance containing enzymes that break down carbohydrates; from the Latin root of fervere, "to boil, to seethe")
Word Unit: ferro-, ferr-, ferri- (Latin: iron; pertaining to, or containing iron)
Word Unit: ferv- (Latin: to boil; hot; to begin to boil, to be hot; deeply earnest; ardent)

Related "heat, hot" word units: pyreto-; thermo-.

Related "bubble" word unit: ebulli-.

Word Unit: fest-, -fest (Latin: seize, to be seized; capable of being seized)
Word Unit: feto-, fet-, feti-, foeto-, foet- + (Latin: an unborn offspring, fetus)

Related "birth, born, childbirth, offspring" words: abort-; lochio-; nasc-, nat-; proli-; toco-, toko-.

Word Unit: fibrin-, fibrino- (Latin: an insoluble protein that is an essential part of blood coagulation)
Word Unit: fibro-, fibr-, fiber- + (Latin: fiber [an elongated, threadlike structure]; a combining form denoting a relationship to fibers)
Word Unit: fibul- + (Latin: clasp, brooch; outer bone of the leg)
Word Unit: fid-, fidel- (Latin: believe, belief; trust, faith, true)

Cross references of word families that are related directly, or indirectly, to: "faith, trust; faithful, trusting; believe, belief": cred-; dox-.

Word Unit: fier-, feroci- + (Latin: wild, untamed)
Word Unit: figur-; fig- (Latin: form, shape, figure; to make, to shape, to form)

Inter-related cross references, directly or indirectly, involving word units dealing with "form, shape, appearance": eido-; form-; icono-; ideo-; imag-; morpho-; -oid; typo-.

Word Unit: fili- (Latin: son, and by extension, "daughter; offspring" or "family member")
Word Unit: Filibuster (from pirates to American politics)
Word Unit: filo-, fil-, filari- + (Latin: thread, string)