dis-
/dɪs/prefix
1
- expressing negation表示“否定”：
disadvantage.
2
- denoting reversal or absence of an action or state表示“相反”, “缺乏”：
diseconomy
disaffirm.
3
- denoting removal of something表示“去除”：
disbud
disafforest.
3.1
- denoting separation表示“分离”：
discarnate.
3.2
- denoting expulsion表示“逐出”：
disbar.
4
- expressing completeness or intensification of an unpleasant or unattractive action表示“完全地”：
disgruntled.
词源
from Latin, sometimes via Old French des-.