The first eight of the ten commandments, see 戒; not to kill; not to take things not given; no ignoble (i.e. sexual) conduct; not to speak falsely; not to drink wine; not to indulge in cosmetics, personal adornments, dancing, or music;　not to sleep on fine beds, but on a mat on the　ground; and not to eat out of regulation hours,　i.e. after noon. Another group divides the sixth　into two―against cosmetics and adornments and　against dancing and music; the first eight are then　called the eight prohibitory commands and the last the 齋 or fasting commandment. Also 八齋戒;　八關齋 (八支齋) ; cf. 八種勝法.

A Dictionary of Chinese Buddhist Terms, William Edward Soothill and Lewis Hodous

又叫做八齋戒、八關齋、八支齋，簡稱八戒。一、不殺生，不殺有生命的動物；二、不與取，不取他不與之物；三、不非梵行，不作男女之媾合；四、不虛誑語，不說不符事實的話；五、不飲酒，不飲一切的酒類；六、不塗飾鬘舞歌觀聽，不身塗香飾花鬘及觀舞蹈聽歌曲；七、不眠坐高廣嚴麗床上，不坐臥於高廣嚴麗的床上，八、不非時食，不食非時之食，亦即過午不食。離上述八種之非法為八戒，又因此八戒中之第八離非時食是齋法，故總名八戒齋。

佛光電子大辭典

另譯為「八關齋戒、八關齋法、八關、八支齋、近住戒」，即不「殺生、偷盜、淫、妄語、飲酒、塗香歌舞、奢華床座、過午食」。

漢譯阿含經辭典，莊春江編(1.4版)