前後母音—強弱母音 i < e < a

弱化現象

fac- “make, do”

factory

fact

factor (n.)

fac simile > fax

manufacture (v.). manufacturer (n.)

facility facilitate (v.)

faction (n.) 政治上的派系 factional 

malefactor n 壞人、犯罪者 evildoers/ wrongdoer / malefaction 

fec

affect (v.)

effect (n.) effective

perfect

defect defective 

affection n 溫和的情感、愛慕的感覺 affectionate (adj.)

affectation n 矯揉造作 affectatious (adj.)