Prefixes
Negation and absence
A-/An- : not, without, or toward
Dis- : opposite of
In- : not, without
Non- : not
Pseudo- : false
Un- : not
Numbers
Mono- : one
Uni- : one
Bi- : two
Di- : two
Tri- : three
Quad- : four
Pent- : five
Quin- : five
Hex- : six
Sept- : seven
Oct- : eight
Deca- : ten
Cent- : hundred
Size or quantity
Ambi-/amphi- : both
Hemi- : half
Macro- : large
Maxi- : large
Mega- : very large
Micro- : very small
Min- : small
Multi- : many
Omni- : all
Over- : too much
Pan- : all
Poly- : many
Semi- : half
Direction or position
Against
Anti- : against
Contra- : against
Around
Circum- : around
Peri- : around
Away
Ab- : away from
De- : away
Before
Ante- : before
Fore- : before
Pre- : before
Toward
A-/an- : not, without, or toward
Ad- : toward
Other
Co- : together
Em-/en- : inside
Ex- : from, out
Extra- : outside
Inter- : between
Intra- : within
Med- : middle
Para- : next to
Post- : behind, after
Pro- : forward, in front
Retro- : backward
Se- : apart
Sub- : below
Super- : above
Trans- : across
Time or order
Neo- : new
Prot- : first
Re- : again
Comparison (similarity or difference)
Hetero- : different
Homo- : same
Hyper- : excessive, more than
Hypo- : less than
Sym-/Syn- : together, same
Condition or quality
Dys- : abnormal, difficult
Mal- : bad
Mis- : bad, wrong
Roots
Human beings, society, and emotion
Am : love
Anthro : man
Arch : chief
Auto : self
Burs : money
Civ : citizen
Cred : believe
Crat : rule
Culp : blame
Dem : people
Dign : worth
Dog : opinion
Dol : suffer
Dub : doubt
Fal : error
Fi : faith
Hap : chance
Idio : peculiar
Jur : law
Lang : tongue
Lect : select
Mand : command
Nom : name
Oner : burden
Pac : peace
Par : equal
Pas : feeling
Ped : foot; also child (as in pediatric )
Pen : pay
Phil : love
Phob : fear
Plac : please
Polis : city
Psych : mind
Reg : rule
Sacr : holy
Sent : feel
Sol : alone
Test : witness
Theo : god
Urb : city
Ver : truth
Body, health, and the senses
Acou : hear
Anim : life
Bio : life
Card : heart
Carn : flesh
Corp : body
Derm : skin
Dorm : sleep
Manu : hand
Mor : death
Nox : harm
Opt : eyes
Path : disease
Phon : sound
Pod : foot
San : healthy
Sen : old
Somn : sleep
Spec : look
Spir : breath
Tact : touch
Vi : life
Vis : see
Nature
Aqua : water
Astro : star
Chrom : color
Cosm : universe
Fum : smoke
Geo : earth
Herb : plant
Hydr : water
Lum : light
Photo : light
Pyr : fire
Sem : seed
Sol : sun
Terr : land
Therm : heat
Tox : poison
Time and change
Annu : year
Chron : time
Cre : grow
Di : day
Esce: becoming
Fin : end
Gen : birth
Morph : shape
Mut : change
Nat : birth
Movement, direction, and conflict
Ambl : go
Belli : war
Cap : take
Ceed : yield
Celer : speed
Cis : cut
Cur : run
Dors : back
Duc : lead
Err : wander
Fer : bring
Fug : flee
Grad : step
Greg : flock
It : journey
Ject : throw
Lev : lift
Mis : send
Mov : move
Nau : ship
Pel : drive
Pet : seek
Port : carry
Prop : near
Pug : fight
Sec : follow
Sta : stand
Tract : pull
Tor : twist
Ven : move towards
Vert : turn
Volv : turn
Language, knowledge, and expression
Cant : sing
Cogn : know
Dict : say
Doc : teach
Fab : speak
Gno : know
Gram : write
Lex : speak or read
Loc : speech
Log : reason
Mon : remind, warn
Que : ask, seek
Rog : ask
Sci : know
Scrib : write
Voc : calling
Physical qualities and materials
Ac : sharp
Al : other
Bene : good
Brev : short
Centr : center
Cern : separate
Caus : burn
Clo : close
Cli : lean
Crypt : hidden
Dext : right hand, right side
Dur : hard
Ferv : boil
Flu : flow
Fort : strength, strong
Grat : pleasing
Her : stick
Hol : whole
Juv : young
Lav : wash
Liber : free
Lig : tie, bind
Nihil : none
Null : nothing
Pend : hang
Plen : fill, full
Pot : drink
Pov : few
Punc : point
Quie : rest
Rect : straight
Salv : save
Sed : settle
Sua : sweet
Sum : total
Sur : over
Ult : last
Val : strength
Work, making, and process
Act : do
Clam : shout
Cumb : lie down
Dele : erase
Don : give
Fac : make
Frac : break
Fus : pour
Lab : work
Laud : praise
Pon : place
Strict : tighten
Struct : build
Tain : hold
Tend : stretch
Vor : eat
Suffixes
People and roles
-crat : ruler
-ee : person that receives an action
-er : person that does an action
-ess : female person
-ian : skilled person
-ist : person who does, specialist
-ite : a person with a trait
-or : a person
States and qualities
-a : state of
-able/-ible : capable of
-ac : pertaining to
-age : result
-al/-an/-ary : relating to
-ate : state or quality of
-cy : state of
-dom : realm or physical state
-escence : taking on a quality, becoming
-ful : full of
-hood : condition, group identity
-ic/-etic : relating to
-ity : quality of
-ive : having the nature of
-less : lacking
-ly : in a way, characteristic of
-ness : state of being
-ous : having the quality of
-ship : condition or state of being
-some : causing a feeling
-th : state or quality
-tude : state or condition
-y : characterized by, full of
Actions, processes, and results
-ance : action
-cide : killing
-en : to become
-ify : to make into
-ing : process
-ion : act or result of
-ize : to make, to become
-ment : result or act of
-ure : action or result
Description and resemblance
-esque : in the style of
-ette : small, diminutive
-ish : resembling, somewhat
-oid : resembling
-ular : resembling
-ward : direction, manner
Knowledge, science, and language
-cracy : government
-ese : language or nationality
-ism : belief system
-itis : inflammation
-logy : study of
-nomy : rules, system
-osis : disease
Tense and degree
-ed : past tense
-er : comparative
-est : superlative, most