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：-gate

【来源及含义】Latin: a suffix; from agere to set in motion, to drive, to lead; to do, to act

【同源单词】abnegate, abrogate, aggregate, alligate, arrogate, bifurgate

词根词缀：rog-, roga-, -rogate, -rogation, -rogatory

【来源及含义】Latin: ask, inquire, request, beg; propose

【同源单词】abrogate, abrogation, arrogance, arrogancy, arrogant, arrogantly