חד

From Proto-Semitic *ʾaḥad-.

חד • (ḥad) m (f חדא‎)

1. one (1)
   • a. 1590,, “חד גדיא [One Kid Goat]”, traditional cumulative song recited by Jews at the Passover Seder:

     ‏חַד גַּדְיָא חַד גַּדְיָא‎ דְּזַבִּין אַבָּא בִּתְרֵי זוּזֵי‎‎

     ḥadʰ gadʰəya, ḥadʰ gadʰəya də-zabbin abba bi-tʰərei zuzei

     One kid goat, one kid goat that my father bought for two denarii

From Aramaic חד‎ above, which is cognate with Hebrew אֶחָד‎ (eẖád, “one”).

חַד • (ẖad-)

1. Single-, one-, uni-, mono-.

   משמעות‎ (mashma'út, “meaning”) → חד משמעי‎ (ẖad-mashma'í, “unambiguous”)

   הורה‎ (horé, “parent”) → חד הורי‎ (ẖad-horí, “single-parent”)

   פעם‎ (pá'am, “time, instance”) → חד פעמי‎ (ẖad-p'amí, “one-time, single-use, disposable”)

   צד‎ (tzad, “side”) → חד צדדי‎ (ẖad-tzdadí, “one-sided, unilateral”)

• (single-): רַב‎ (rav-)

• דּוּ‎ (du-, “double-, bi-, di-”), תְּלַת‎ (tlat-, “triple-, tri-”)

• אֶחָד‎ (eẖád, “one”)

Compare Arabic حاد‎ (ḥādd, “sharp”), Old Armenian խադ (xad, “sword”).

This etymology is incomplete. You can help Wiktionary by elaborating on the origins of this term.

חַד • (ḥad) (feminine חַדָּה‎, masculine plural חַדִּים‎, feminine plural חַדּוֹת‎) [pattern: קֶטֶל]

1. sharp
2. clear, exact

   ‏הוא היה חד בדבריו.‎‎ ― hu haya ḥad b'd'varáv. ― He was clear in his words.

3. strong, sharp, piercing, acute

   ‏כאב חד‎‎ ― ke'év ḥad ― A piercing pain

• (sharp): שָׁנוּן‎ (shanún)

• (sharp): קֵהֶה‎ (qehé)

• חַד עַיִן‎ (ẖad 'ayín)
• חַד וְחָלָק‎ (ẖad veẖaláq)

חֹד • (khód) m

1. defective spelling of חוד‎

(This etymology is missing or incomplete. Please add to it, or discuss it at the Etymology scriptorium.)

חָד • (ḥad) (pa'al construction)

1. to pose a riddle, to quiz

• “חד” in the Hebrew Terms Database of the Academy of Hebrew Language