词根词缀：a-, ab-, abs-

【来源及含义】Latin: prefix; from, away, away from

【相关描述】This prefix is normally used with elements of Latin and French origins (abs- usually joins elements beginning with c, q, or t).

The form ab- is regularly used before all vowels and h; and it becomes a- before the consonants m, p, and v. The prefix apo- has similar meanings.

This list is a very small sample of the multitudes of a-, ab-, abs- prefixes that are available in dictionaries and those in this unit are only meant to present a few examples.

【同源单词】abampere, abampere centimeter squared, abampere per square centimeter, abarticular, abarticulation, abbreviate

词根词缀：abort-, aborti-

【来源及含义】Latin: miscarry, pass away, perish by an untimely birth

【相关词根词缀】 Related "birth, born, childbirth, offspring" words: feto-; lochio-; nasc-, nat-; proli-; toco-, toko-.

【同源单词】abort, aborticidal, aborticide, abortifacient, abortion, abortional

词根词缀：oriri-, orir-, ori-, or-

【来源及含义】Latin: to rise, arising, to be born, source, original; the rising sun, east; to ascend, to spring up, to become visible, to appear

【同源单词】Ab origine, Ab origine fidelis, aboriginal, aboriginally, aboriginary, aborigine

词根词缀：-um

【来源及含义】Greek > Latin: a suffix that forms singular nouns

【相关描述】Here are just a few of the hundreds of words that end with -um.

【同源单词】abandum, abortorium, absorption spectrum, acropodium, actinium, acute delirium