day (n.)

古英语 dæg “太阳高于地平线的时期”, 也是“一生一世, 明确的存在时间”, 来自于原日耳曼语 *dages- “一天” (来源也是古撒克逊语, 中荷兰语, 荷兰语 dag, 古弗里斯兰语 di, dei, 古高德语 tag, 德语 Tag, 古北欧语 dagr, 哥特语 dags), 据Watkins说, 来自于PIE根 *agh- “一天”. 他补充说, 日耳曼语的首字母 d- “来源模糊”. 但Boutkan说它来自PIE根 *dhegh- “燃烧” (见 fever). 不认为与拉丁文 dies (来自PIE根 *dyeu- “照耀” )有关.

在英语中原意为“白天的时间”; 到了盎格鲁-撒克逊时代后期, 扩大为“24小时” 的意思. 以前的一天是从日落开始的, 因此古英语 Wodnesniht, 就是我们所说的“周二夜”. 直到17世纪, 工作日的名称在英语中才被定期大写.

从12世纪末开始作为“区别于其他时间段的一个时间段”. Day-by-day “每日” 出自14世纪末. all day “所有的时间” 是14世纪末的. Day off “一天不上班” 是从1883年开始考证的. day-tripper 1897年首次记载. nowadays, 等中的 days, 是古英语和中英语使用副词属词的遗迹.

All in a day's work “something unusual taken as routine” 是到1820年. 的怀旧 those were the days 是由1907年证明的. That'll be the day 在某种吹嘘或宣称之后表示轻度怀疑的, 是到1941年. 对 call it a day “停止工作” 是到1919年, 更早的 call it a half-day (1838年). One of these days “在不久的将来的某一天” 是15世纪末的. One of those days “不幸的一天” 是到1936年.

updated on November 04, 2019

Definitions of day from WordNet
day (n.)
time for Earth to make a complete rotation on its axis;
they put on two performances every day
two days later they left
there are 30,000 passengers per day
Synonyms: twenty-four hours / twenty-four hour period / -hour interval / solar day / mean solar day
day (n.)
some point or period in time;
these days it is not unusual
after that day she never trusted him again
it should arrive any day now
those were the days
day (n.)
a day assigned to a particular purpose or observance;
day (n.)
the time after sunrise and before sunset while it is light outside;
the dawn turned night into day
Synonyms: daytime / daylight
day (n.)
the recurring hours when you are not sleeping (especially those when you are working);
my day began early this morning
it was a busy day on the stock exchange
she called it a day and went to bed
day (n.)
an era of existence or influence;
in the day of the dinosaurs
he was a successful pianist in his day
in the days of the Roman Empire
in the days of sailing ships
day (n.)
the period of time taken by a particular planet (e.g. Mars) to make a complete rotation on its axis;
how long is a day on Jupiter?
day (n.)
the time for one complete rotation of the earth relative to a particular star, about 4 minutes shorter than a mean solar day;
Synonyms: sidereal day
day (n.)
a period of opportunity;
every dog has his day
he deserves his day in court
Day (n.)
United States writer best known for his autobiographical works (1874-1935);
Synonyms: Clarence Day / Clarence Shepard Day Jr.
From, not affiliated with etymonline.