1
- a word, letter, or number placed before another置于前面的词（字母, 数字）：
the Institute was granted the prefix 'Royal' in 1961.
这一研究院在1961年被冠以“皇家”称号。
1.1
- an element placed at the beginning of a word to adjust or qualify its meaning (e.g. ex-, non-, re-) or (in some languages) as an inflection前缀（置于词首以改变、修饰词义, 如： ex-, non-, re-; 或在有的语言中表曲折变化）。
1.2
- a title placed before a name (e.g. Mr)称谓（如Mr）。
with obj.
1- add (something) at the beginning as a prefix or introduction给…加前缀; 加…作为前言：
a preface is prefixed to the book.
该书前加有序言。
1.1
- add a prefix or introduction to (something)把前缀（或引言）加在…上：
all three-digit numbers will now be prefixed by 580.
所有的三位数前现在都加上580.
派生词
prefixation
noun词源
mid 16th cent. (as a verb)： from Old French prefixer, from Latin praefixus 'fixed in front'， from the verb praefigere, from prae 'before'+figere 'to fix'. The noun is from modern Latin praefixum, neuter (used as a noun) of praefixus, and dates from the mid 17th cent.