Al m’nas livnos – for the purpose of building.
Array – temporary.
Avid v’kay – already made.
Av – lit. father. Main category of melacha.
B’karka – in (with) the ground.
B’kaylim – in (with) vessels.
Beis Hillel – a school of learning from the time of the mishna.
Beis Shammai – a school of learning from the time of the mishna.
Binyan – building. One of the 39 melachos.
Borer – separating. One of the 39 melachos.
Chayav – lit. obligated. A biblical prohibition. If one does this by accident, one has to bring a chatas offering. If it is done intentionally in front of witnesses, one is stoned to death.
Chazon Ish – great rabbi who lived in the early twentieth century.
Choleh sh’ayn bo sakanah – an ill person.
Choleh sh’yesh bo sakana – someone deathly ill.
D’rabanan – from the rabbis of the Talmudic period.
D’oraysa – Biblically.
Gemara – the second part of the oral law to be written down. Explains and expands upon the mishna.
Hilchos (halacha sing.) – the laws of.
Issur – prohibition.
Lavud – a halachic principle in which we consider gaps of less than three tefachim to be closed.
Maka b’patish – finishing touch to something. One of the 39 melachos.
Melma’aleh lemateh – from top down.
Mishna – the first time the oral torah was written down, about 150 C.E. It was written in a very terse and unclear manner, only understandable with the gemara.
Mishnah Brurah – a much accepted work on the Shulchan Aruch written by the Chofetz Chaim (Rav Yisoel Meir HaKohen Kagan) in the late nineteenth and early twentieth centuries.
Melacha (melachos pl.) – category of work prohibited on shabbos. There are 39.
Mosif al ohel array - making a temporary addition to an already existing ohel.
Ohel – lit. tent. Creating tents is one of the toldas or binyan.
Patur – lit. exempt. A rabbinic prohibition. There is no punishment for a violation.
Poskim – those that rule on Jewish law.
Rambam – an early Rishon. (Maimonides)
Ramban – an early Rishon. (Nachmonides)
Rashi – an early Rishon. The most basic commentator on the Talmud.
Ran – a late Rishon.
Rema – the notes on Shulchan Aruch that quote the German and Eastern-European customs. Written by Rabbi Moshe Isserles, the Rabbi of Crakow.
Rishonim (Rishon sing.) – aarly commentaries on the Talmud from about 1000 C.E. until about 1500 C.E.
Shabbos – the Sabbath (from Friday sunset until Saturday at nightfall).
Shinui – an unusual way of performing a prohibited act. It downgrades a Biblical prohibition to a Rabbinic one, but a Rabbinic one is still prohibited.
Shulchan Aruch – Code of Jewish law. Written by Rabbi Yosef Cairo in the early sixteenth century.
Sosair – destroying. One of the 39 melachos.
Stira – See sosair.
Sugya – the relevant sources in the gemara and its commentaries.
Talis – prayer-shawl.
Taz – Turei Zahav. A commentary on all four sections of Shulchan Aruch.
Tefach (tefachim pl.) – biblical and Talmudic measure. Between 8 and 9.67 cm.
Toldah – subcategory of one of the melachos. Also prohibited d’Oraysa.
Tosfos – a group of early rishonim many of whom were grandsons of Rashi.