I am told that a בגדכפת letter takes a דגש following a closed syllable (examples of this: נִשְׁבַּ֧ע, בְּקִרְבֶּ֑ךָ and לְנֶגְדְּכֶם֙) (i.e. ends with the letter and not the vowel), so why do words like:





not take a דגש in the first ת?

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    These are often called sheva merachef. I believe the reason is that the syllable is historically not closed (w'kh'tavtem), but by the Masoretic era, the change was already underway. – magicker72 Jun 23 at 12:47
  • As an example of "change in progress", check out לצבא in Num 4:23 vs Isaiah 31:4. – magicker72 Jun 23 at 12:49
  • Would you consider accepting my answer? – Kazi bácsi Jun 28 at 6:22

The correct verb form without the and should be: כְּתַבְתָּם – inscribe them. Although in second person plural the kamatz shortens to a sheva na, the tav won't receive a dagesh, because it doesn't come after a closed syllable. The syllabication of the word is thus כְּתַבְ-תָּם, because the sheva doesn't qualify for its own syllable. The same is the case with the -וְ prefix: even though it tranforms to -וּ, it's still not a syllable, so the syllabication remains וּכְתַבְ-תָּם however strange it seems. Therefore, we don't have a closed syllable "-וּכְ" as you write, but rather a single one as written previously, and you won't have a dagesh in the tav.

See also this French site with great examples* and an explanation of the Hebrew syllabication.

Regarding your other examples, many words with two segol in them behave in a similar way by not having a dagesh after a closed syllable. Some examples are:

singular plural construct
דֶּרֶךְ דְּרָכִים דַּרְכֵי
מֶלֶךְ מְלָכִים מַלְכֵי
דֶּלֶת דְּלָתוֹת דַּלְתוֹת
כֶּלֶב כְּלָבִים כַּלְבֵי
חֶסֶד חֲסָדִים חַסְדֵי
אֶלֶף אֲלָפִים אַלְפֵי
חֶרֶב חֲרָבוֹת חַרְבוֹת
בֶּגֶד בְּגָדִים בִּגְדֵי
כָּנָף כְּנָפַיִם כַּנְפֵי

Here the problem is that in plural the first vowel becomes a sheva or – in case of gutturals – a chataf patach. In the construct form the second vowel should be also shortened, but it is impossible, because there would be two consecutive sheva in the beginning. So the first sheva becomes a short vowel – either a patach (דרך) or a chirik (בגד), and the second vowel will be a sheva in these cases, while the dagesh is still omitted as in the plural base form.

Regarding nouns with ה ending, this ה hardens to a ת in the construct form (which was like a th sound in think in the olden days), but it seems that concerning the dagesh it was still considered an open syllable and the כ wasn't hardened (see עָרְלַתְכֶם, חָכְמַתְכֶם, גְּבוּרַתְכֶם, כְּהוּנַּתְכֶם, אֲחוּזַּתְכֶם). Although we should note that in other words like לְבַבְכֶם, אֶתְכֶם the כֶם- suffix doesn't get dagesh either.

* Your question would be trickier with the word בִּדְבַר discussed there, where you actually don't have a dagesh after a closed syllable.

  • The OP asked about "words like וכתבתם", and not just that one. It's worth giving an answer for בדבר as well. – magicker72 Jun 23 at 14:34
  • You can ask the OP, but I think it's pretty clear that the question distinguishes cases where a "בגדכפת letter takes a דגש following a closed syllable" vs cases where there is no דגש following an apparently closed syllable. No reason to give a partial answer just because the OP doesn't know the material enough to ask the "proper" question. – magicker72 Jun 23 at 14:46
  • The question doesn't make that distinction, your answer does. The questioner doesn't know to make such a distinction, so is most probably asking about all cases where there is a "missing" dagesh. – magicker72 Jun 23 at 19:56
  • @Kazi bácsi do you pronounce the word:"u-chu-sav-tom" or "uch-sav-tom"? If it is the former then I undertand. If it is the latter then are you saying that even so, because without the prefix the כ would not have a דגש, the וּ just won't change it? – Anonymus Jun 24 at 13:58
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    @Anonymus The point I'm trying to make is that the syllabification of English is different than Hebrew. There are only two syllables: ukhsav-tom/ukhtav-tam, "ukh" is not a syllable. – Kazi bácsi Jun 24 at 14:31

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