Elk Grove Unified School District's

Suggested K-6 Affix List

Prefixes introduced in Open Court Reading 2002

Prefix / Meaning / Example / 2nd grade / 3rd grade / 4th grade / 5th grade / 6th grade
*dis-, dif- / absence, opposite reverse, not / difficult, disagree / X / X / X / X / X
*mis- / wrongly, badly, not / misplace / X / X
*pre- / before, in front of / preschool / X / X / X
*re- / back or again / return / X / X / X / X / X
*un- / not, opposite of, remove from, reverse / unhappy / X / X / X
be- / about, around / beside / X
by- / secondary / bypass / X
en- / in, into, on, cause to be / endanger / X / X
*il-,im-,in-, -ir / not / illegal, impossible inactive, irregular / X / X / X
*anti- / against / antisocial / X / X
ex- / out of, from / export / X
im-, in- / into, toward / import, inhabit / X / X
*trans- / across, through, over / transport / X
*con- / with, together / construct / X / X
*inter- / between, among / intersession / X / X
uni- / one / unicycle / X
*col-
com- / with, together / collaboratecommutative / X
intra- / inside, within, between / intramural / X
*mid- / middle / midpoint / X
*non- / not, absence of / nonfiction / X
post- / after, later, behind / postgraduate / X
pro- / forward, before / proceed / X
sub- / under / submerge / X
super- / above, additional beyond / superlative / X
under- / too little / undergraduate / X

Additional prefixes-not introduced in Open Court Reading 2002

Prefix / Meaning / Example / Prefix / Meaning / Example
over- / too much, too long extra / overheat / *bi- / two, twice / bisect
fore- / before, in / forefather / *tri- / three / tripod
*de- / away from opposite / depart / *quad- / four / quadruped
*semi- / half, partly / semicircle / *hemi- / half / hemisphere
*deci- / one tenth / decimal / oct- / eight / octagonal
*centi- / one hundredth / centimeter / quint- / five / quintet

*Power Affixes (*): By the end of 6th grade, students should know affixes and use this knowledge to determine the meaning of unknown words.

Suffixes introduced in Open Court Reading 2002

Suffix / Meaning / Part of Speech / Example / Gr. 1 / Gr. 2 / Gr. 3 / Gr. 4 / Gr. 5 / Gr. 6
*-ed / used to form past tense / v / jumped / X / X / X / X / X / X
*-er / someone who/more / adj, n / farmer, taller / X / X / X / X / X / X
*-est / most / adj / tallest / X / X / X / X / X / X
*-ful / full of / adj / wonderful / X / X / X / X
*-ing / happening now / adj, v / working / X / X / X / X / X / X
*-less / without / adj / penniless / X / X / X
*-ly / like, in the manner of / adv / carefully / X / X / X / X / X / X
*-ation,
-ion, -tion / act of, state of, result of / n / education, expression, action / X / X / X / X / X
*-able, -ible / capable of / adj / manageable divisible / X / X / X
-age / action, result of action, state / n / carriage / X
*-s/-es / plural / n / desks, dresses / X
-ial / relating to / adj / colonial / X / X / X
*-ment / state, act, or process of / n / enjoyment / X / X / X / X
*-ness / state of / n / happiness / X / X / X
*-sion / condition of / n / tension / X / X
*-y / inclined to, tend to / adj / sleepy / X / X
*-al, -ial / relating to / adj / personal / X / X / X
-ic / nature of, like / adj / artistic / X
-ious / full of, having / adj / malicious / X
-ive / causing, making / adj / festive / X / X
*-or / designates a person / n / senator / X / X / X
-ous / full of, having / adj / adventurous / X / X / X
-ure / act, process, function / n / closure / X
-ant / one who performs action or process; thing that is acted upon / n, adj / participant / X
-ary / pertaining to
connected with / n, adj / visionary / X
-ance
-ence / state or quality of, action / n / performancepreference / X / X
-ent / inclined to, in a state of, someone who / n, adj / competent / X
-ity, -ty / state of, quality / n / humanity / X

Additional suffixes-not introduced in Open Court Reading 2002

Suffix / Meaning / Part of Speech / Example
*-en / made of, make / v / sharpen
*-ist / person who practices / n / perfectionist

*Power Affixes (*): By the end of 6th grade, students should know affixes and use this knowledge to determine the meaning of unknown words.