词根：press = to press （压）
press 是个非常显现的拉丁词根，因为它成为英语的单词press,广为初学者所认识。press 来自拉丁动词pressare,意为to press （压），其动名词pressum 的词干也是press,所以不存在异形根。
（来源拉丁语 premere 压；它相应的希腊语词根为：baro 压，如：isobar 等压线、barometer 气压计 ——出自赢在单词）
同源词：
1. compress （一起按 com(=together) + press(=press)）（全部文章被压成一段精炼的话，即压缩 / 摘要）
vt. 压缩；压紧；概括
n. 温敷布，压布
compression n.压缩
compressor n.压缩机
compressed adj.压缩的
compressible adj.可压缩的
You can compress a flower between the pages of a book. 可以把花夹压在书页中间。
2. expressly（挤压出外边 ex(=out) + press(=press)）
adv. 明白地，清楚地；特别地，特意地（把自己的情感有内向外的压出来，即表达 / 表示）
express v.表达，表示；快递；（adj.）明白的，明示的；快递的；快速的 （n.）快车；快运；快递公司
expression n.表达，措辞；表情
expressionism n.表现主义
expressive adj.表现的
expressionless adj.无表情的
The web site was expressly created to support recently widowed women. 那个网站是为支持那些刚刚失去丈夫的女性们特别制作的。
3. oppress（逆着某物压 op<ob(=against,intensive) + press(=press)）（封建主不断压迫我们，我们当然要反抗啊！即压迫 / 压抑）
vt. 压迫，压制；使（心情）沉重
oppression n.压制，压抑
oppressor n.压制者
oppressive adj.压制的，压迫的；烦闷的
Organized religion is often used to opress people,in my view. 依我看，组织性的宗教往往被用来压制人民。
4. repress（向后按压 re(=back) + press(=press)）
vt. 压抑，抵制；镇压
repression n.压抑；镇压
repressive adj.压抑的
repressed adj.被压抑的
I've tried to repress my memories of being raped,but without success. 我努力压抑着那段被强奸的记忆，不过却没什么用。
5. suppress（向压 sup<sub(=under) + press(=press)）（清政府向下不断压制农民起义，即镇压 / 抑制）
vt. 镇压，压制；隐蔽，隐藏；抑制
suppression n.镇压，压制；隐蔽；抑制
suppressor n.压制者，镇压者
suppressive adj.压制的，镇压的
She was struggling to suppress her sobs. 她拼命不让自己哭出声音。
6. depress （某人不断地向下压制你，即使沮丧 / 使消沉）
v.压下；使沮丧，使忧郁；使萧条 *de(=down)
depressed classes 印度的最下层人民
depressed area 不景气地区
7. depression
n.意志消沉，忧郁；坑，洼地；萧条，不景气；低气压 *de(=down)
Great Depression 大萧条
in a slight depression 在较浅的低洼处
depression over Icelan 冰岛上空的低气压
8. depressive
adj.压下的；抑郁的，忧郁的 n.经常忧郁，沮丧、消沉的人 *de(=down)
depressive financial measures 为抑制贸易活动而采取的财政措施
depressive fit 忧郁症
9. impress
v.盖印；使感动，留下印象 n.印记 *im<in(=on)
10. impression
n.压痕；印刷；印次；印数；印象；（模糊的）观念 *im<in(=on)
impressionism n.印象主义
impressionist n.印象主义者
impressionistic 印象主义的
imression of a seal on wax 蜡上面的章印
first impression of 5,000 copies 第一次印刷5000册
11. impressionable
adj.敏感的，易受影响的 *im<in(=on)
children who are at the impressionable age 处于敏感年龄的孩子们
impressionable young lady 很容易受感动的年轻女子
12. impressive
adj.给人深刻印象的 *im<in(=on)
impressive ceremony 给人深刻印象的仪式
13. pressing
adj.紧急的，迫切的，需立即处理的；恳切的，再三要求的 n. （同一指压制的）唱片
pressing invitation 恳切的邀请
100 pressings of a symphony 100张交响乐唱片
pressing business 紧急事务
14. pressure
n.压力；压；压迫；困扰；艰难；紧迫
atmospheric/blood pressure 气压/血压
pressure cooker 高压锅
pressure gauge 压力计
pressure of work 工作压力
under strong pressure 承受巨大压力的
pressure group （为影响政策或舆论而组织的）压力集团
15. pressurized
adj.（飞机、潜水艇等）增压的
16. press
v.
同源词：
1. put steady force on 压：to press the doorbell 按门铃 。2.squeeze 挤取，榨取：to press the grapes to produce wine 榨葡萄汁造酒。3. emphasize with force 强调，坚持：to press for a reform on the
education 坚持要求教育改革。
n. 1. the act of pressing 压按:three presses on the bell 按三下铃。2.printed publications or news organizations as a group 出版业，新闻机构: Oxford University Press 牛津大学出版社
pressing adj.迫切的；坚持的
pressure n.压，按；紧迫
词根词缀：loutro-, loutr-
【来源及含义】Greek: bath, bathing
【相关描述】A discussion about the above words appeared in the April 19, 1993, issue of The Christian Science Monitor in an article, "Dictionary Service Answers Questions About Words" (page 14) that described an organization known as "OWLS" [Oxford Word and Language Service]. One writer wrote, "Please can you tell me the word for a person who drinks their [sic] own bath water, as opposed to one who drinks another's bath water?" These words do not exist in any dictionary. Part of the OWLS' reply read: "As the concept is not central to European civilization, I am not surprised that it has failed to find a place in dictionaries. If words for this are needed in the future, then autoloutrophilist and alloloutrophilist are waiting in the wings for their brief flash of celebrity."
【同源单词】autoloutrophilist, louter, loutrophoros