Prefixes:
* a-, an-: without, not (e.g., atypical, anarchy)
* auto-: self (e.g., autobiography, automatic)
* bi-, di-: two (e.g., bicycle, dichotomy)
* chrono-: time (e.g., chronometer, chronology)
* dia-: through, across (e.g., diameter, diagnosis)
* dys-: bad, difficult (e.g., dysfunction, dyslexia)
* eu-: good, well (e.g., euphoria, eulogy)
* hemi-, semi-: half (e.g., hemisphere, semicircle)
* hyper-: over, above (e.g., hyperactive, hyperbole)
* hypo-: under, below (e.g., hypothermia, hypothesis)
* macro-: large (e.g., macrocosm, macroeconomics)
* micro-: small (e.g., microscope, microbiology)
* mono-: one (e.g., monotheism, monologue)
* multi-: many (e.g., multimedia, multitask)
* pan-: all (e.g., pandemic, panorama)
* para-: beside, near (e.g., parallel, paranormal)
* poly-: many (e.g., polygon, polytheism)
* pro-: before, forward (e.g., prologue, progress)
* pseudo-: false (e.g., pseudonym, pseudoscience)
* syn-, sym-: together (e.g., synthesis, sympathy)
* tele-: far, distant (e.g., telephone, telescope)
* thermo-: heat (e.g., thermometer, thermonuclear)
* trans-: across, beyond (e.g., translate, transcend)
Suffixes:
* -ism: doctrine, belief (e.g., capitalism, feminism)
* -ist: one who believes in or practices (e.g., capitalist, feminist)
* -ology: study of (e.g., biology, psychology)
* -logy: the act of, the science of (e.g., ideology, methodology)
* -phobia: fear of (e.g., claustrophobia, arachnophobia)
* -phile: lover of (e.g., bibliophile, anglophile)
* -graph: instrument for writing or recording (e.g., autograph, seismograph)
* -meter: instrument for measuring (e.g., thermometer, speedometer)
* -cide: act of killing (e.g., homicide, pesticide)
This list is not exhaustive, but it highlights some of the most common Greek prefixes and suffixes used in English. Learning these elements can help you understand the meanings of many words and improve your vocabulary.