名詞
词源
仿譯自拉丁語 diēs caniculārēs (“小狗日”)，仿譯自古希臘語 κυνάδες ἡμέραι (kunádes hēmérai，“狗之日”)，源自κυνάς (kunás，“狗的，與狗有關的”)，源自Κῠ́ων (Kŭ́ōn，“狗”)，此處的「狗」指天狼星，在荷馬希臘語中作「獵戶座之犬」。天狼星偕日升時（在古雅典和古羅馬分別為7月25日和7月29日）被視為是一年中最熱、最不健康、最不幸運的時節。
读音
- /ˈdɒɡ deɪz/
- /ˈdɔɡ deɪz/
释义
天狼星偕日升的時節，現代指八月初（具體時間隨緯度有變）
... a sterre, wherof canicular or dogge days be named Dies caniculares.
1538, Thomas Elyot, "Canicula" in The Dictionary of Syr Thomas Eliot:Dog days bright and clear Indicate a good year; But when accompanied by rain, We hope for better times in vain.
1883, H.H.C. Dunwoody, "Proverbs Relating to Months, Weeks, and Days" in Weather Proverbs, Signal Service Notes, No. IX, p. 98:三伏天，一年中最熱的時節
Why ſhould thoſe Eteſian and Eaſterne winds blow cōtinually in ſome places, at ſet times, one way ſtill, in the dog dayes only: heere perpetuall drought, there dropping ſhowres; [...]
1624，Democritus Junior [pseudonym; Robert Burton]，「Ayre Rectified. With a Digression of the Ayre.」，收錄於The Anatomy of Melancholy: […]，2nd版，Oxford, Oxfordshire：Printed by John Lichfield and James Short, for Henry Cripps，→OCLC，「partition 2, section 2, member 3」，214頁：The dog days of August have often spelled trouble for the world economy.
2013 August 17, "A Rickety Rebound" in The Economist, Vol. 408, No. 8849:使人感到遲鈍、怠惰的時節
The two-cassette miniseries, produced by Oliver Stone, arrives in early August, in time to stir the dog days of summer rentals.
1993, Billboard (volume 105, number 24, page 62)
词形与写法（1）
| 词形 | 标注 | 转写 |
|---|---|---|
| dog day | 一般為複數，單數 |