词根词缀：-aceous, -acea, -aceae, -aceaen, -aceus

【来源及含义】Latin: a suffix; having the quality of, of the nature of, characterized by, belonging to, resembling

【相关描述】There are hunderds of words that utilize the -aceous suffix which are not shown here; however, the following will present important examples.

A suffix that forms adjectives and is used with technical combinations, especially in biological terms: "pertaining or belonging to, of the nature of, or characterized by; to be full of, to possess abundantly". The suffix -acea usually denotes "orders and classes in zoology" while the suffix -aceae usually denotes "orders and families in botany" and -aceaen is used to denote members of "orders of the animal kingdom".

【同源单词】acanthaceous, -aceous, alliaceous, ampullaceous, amygdalaceous, amylaceous

词根词缀：-acity

【来源及含义】Latin: suffix; quality of

【相关描述】A suffix that forms nouns of quality or state. There are hundreds of other -acity suffixes; however, the following will present significant examples.

【同源单词】audacity, bellacity, bibacity, capacity, carnivoracity, contumacity

词根词缀：ad-

【来源及含义】Latin: prefix; to, toward, a direction toward, addition to, near, at; and changes to: ac-, af-, ag-, al-, an-, ap-, aq-, ar-, as-, at- when ad- is combined with certain words that begin with the letters c, f, g, l, n, p, q, r, s, and t

【相关描述】The form ad- appears in this form before a vowel and before the consonants d, h, j, m, and v. It is simplified to a- before sc, sp and st.

Before c, f, g, l, n, p, q, r, s, and t; ad- is changed to ac-, af-, ag-, al-, an-, ap-, aq-, ar-, as-, and at-.

In other words, the d of ad usually changes into the same letter as the first letter of the following root or word when it is a consonant: ad-fix becomes affix, and ad-sign becomes assign; therefore, making a double consonant.

Another example includes: attract as with ad-tract (drawn towards); so it has a double t. On the other hand when ad- precedes a vowel, as with adapt, it is simply ad-apt, with one d. For the same reason, there is only one d in adore and adumbrate, because ad- has combined with orare and umbra each of which starts with a vowel.

So, remember: since these Latin words begin with vowels and not consonants, the d of ad does not double as shown in the previous examples.

【同源单词】a capite ad calcem, Ab ovo usque ad mala, Ab uno ad omnes, Abiit ad majores, abjure, accede

词根词缀：-ary

【来源及含义】Latin: a suffix; a person who, a place where, a thing which, or pertaining to; connected with; having the character of; apparatus

【相关描述】The following examples of this suffix represent a very small number of those that exist in other parts of this lexicon.

【同源单词】ablephary, ablutionary, aboriginary, admaxillary, adversary, agynary

词根词缀：-cola, -colas; -cole; -colent; -colid; -coline; -colous

【来源及含义】Latin: to inhabit; to live in, to live on, to live among; to dwell; living among, dwelling in; occurring on, occurring in

【相关描述】Suffixes that refer to the location or an area of growth. Used primarily in botanical and biological terminology to indicate a plant or an organism that is characterized by a habitat or place of existence as indicated by the combining root.

The suffix -cole is derived from Latin colere, "to inhabit, to dwell, to live".

Don't confuse this -cole, -cola , "inhabit, live in, dwelling in" unit with the following cole-, coleo- (sheath, scabbard, vagina); coll-, col- (neck); collo-, coll- (glue); colo-, col- (colon, large intestine); and colon-, coln- (farm, settlement) units.

【相关词根词缀】 Related life, live-word units: anima-; bio-; vita-; viva-.

【同源单词】acarocola, acarocole, acarocoline, acarocolous, acrodendrocola, acrodendrocole

词根词缀：cole-, coleo-

【来源及含义】Greek: sheath, scabbard; in medicine, a combining form that means "sheath" or "vagina"

【相关描述】Don't confuse this cole-, "sheath, vagina" unit with the following -cole, -cola, -coles (living among, dwelling in); coll-, col- (neck); collo-, coll- (glue); colo-, col- (colon, large intestine); and colon-, coln- (farm, settlement) units.

【同源单词】coleitis, coleocele, coleocystitis, Coleoptera, coleopterophilous, coleoptosis

词根词缀：coll-, col-

【来源及含义】Latin: neck

【相关描述】Don't confuse this coll-,col-, "neck" unit with the following -cole, -cola, -coles (living among, dwelling in); cole-, coleo- (sheath, scabbard, vagina); collo-, coll- (glue); colo-, col- (colon, large intestine); and colon-, coln- (farm, settlement) units.

【相关词根词缀】 Cross references related to "neck, throat" word families: cervic-; esophag-; guttur-; laryng-; nuch-; trachel-.

【同源单词】accolade, collar, collar, collarbone, collar-crown, decollate

词根词缀：collo-, coll-, colla-

【来源及含义】Greek: glue

【相关描述】Don't confuse this collo, coll-, "glue" unit with the following -cole, -cola, -coles (living among, dwelling in); cole-, coleo- (sheath, scabbard, vagina); coll-, col- (neck); colo-, col- (colon, large intestine); and colon-, coln- (farm, settlement) units.

【同源单词】collagen, collagenase, collaplankton, collenchyma, colloblast, collodion

词根词缀：colo-, col-

【来源及含义】Greek: kolo- > Latin: colo-, colon or large intestine [that part which extends from the cecum to the rectum]

【相关描述】Don't confuse this colo-, col-, "colon, large intestine" unit with the following -cole, -cola, -coles (living among, dwelling in); cole-, coleo- (sheath, scabbard, vagina); coll-, col- (neck); collo-, coll- (glue); and colon-, coln- (farm, settlement) units.

【同源单词】colocecostomy, colocentesis, colocutaneous, colodyspepsia, coloenteritis, colometrometer

词根词缀：colon-, -coln

【来源及含义】Latin: estate, farm, settlement

【相关描述】Don't confuse this colon-, -coln, "estate, farm" unit with the following -cole, -cola, -coles (living among, dwelling in); cole-, coleo- (sheath, scabbard, vagina); coll-, col- (neck); collo-, coll- (glue); and colo-, col- (colon, large intestine) units.

【同源单词】colonial, colonist, colonists, colonization, colonize, colony