I wrote about syllable numbers a little while ago, after all. Now, in this text I'm talking about things that I don't actually know that well, and making claims that I can't back up. But what better way to get answers than by posting the wrong answers online.
1.2 Number of syllables per word root
Some languages have a very notable constraint on the number of syllables its word roots consist of. With word root here we mean the part of a word that does not have any inflection or derivational morphemes on it. This is not necessarily the dictionary form (lemma) of a word.
For example, in Swedish almost all verbs end with -a. This -a does not carry any grammatical meaning, but it's not part of the verb root. For example, the root of
läsa (read) is
läs-. One could argue that the -a is a verbalizer, and that is why it's not part of the root. Furthermore, this -a is deleted in compound words, c.f.
läsförståelse (reading comprehension).
In some languages, the root itself may not be a permissible word or syllable. This can make it hard to count the syllables in a root. In such a case, it's up to you to decide on how to count root syllables. Different languages may have reasons to count differently, so no general rules can be given.
For many languages though, the number of syllables per root varies in such a way that it's not a noteworthy feature of that language. Therefore it is not that important for you to define your conlang's maximum number of syllables per root. As for the minimum number of syllables, most (perhaps all) natlangs have 1 as the minimum.
In this question we are dealing with your conlang's native words, not borrowed words. We are also dealing with root length in general. For example Mandarin is known for having monosyllabic roots, but even Mandarin has a few native roots consisting of two syllables. In this question, we would classify Mandarin as having a minimum syllable count of 1 and a maximum syllable count of 1 anyway, because the vast majority of roots are monosyllabic.
Put down a ✗ in both columns to mark your conlang's minumum and maximum number of syllables per word root.
Table with the heading "Min. number of syllables per word root", and rows with the following values:
1
1.5
2
More than 2
Undefined
Table with the heading "Max. number of syllables per word root", and rows with the following values:
1 (monosyllabic)
1.5 (sesquisyllabic)
2 (disyllabic)
3 (trisyllabic)
4
More than 4
Undefined
Monosyllabic languages (1 syllable)
Mandarin and Vietnamese are two well-known monosyllabic languages. (Their minimum and maximum number of syllables per root is 1.)
Sesquisyllabic languages (“1.5” syllables) ↗WP
Languages of this type have words that consist of full (normal) syllable, and a minor (reduced) syllable (which is the “half” syllable). The minor syllable has a simpler syllable structure than a full syllable, and not all the phonemes of the language may appear in a minor syllable. The details vary from language to language. Sesquisyllabic natlangs may also have words that consist of only one, full syllable. Therefore 1.5 syllables is marked red in the column for minimum root length.
All sesquisyllabic natlangs are spoken in Southeast Asia. This feature seems to originate in the Austroasiatic family, but it has spread to nearby language through language contact. Though on Wikipedia it is claimed that Proto-Tai and Old Chinese also had this feature. In any case, this is a notable Southeast Asian feature, so maximum length of 1.5 syllables has been marked as orange.
Polysyllabic languages (2 or more syllables)
Most languages belong to this group. Most (perhaps all) languages have 1 as the minimum syllable number. Therefore the options “2” and “more than 2” in the column for minimum number of syllables are marked as orange; we don't know if languages like this exist because of lack of data. We also don't know what are the longest roots some language has. 4 is probably very unusual, and more than four more unusual still. So at least the option “more than 4” is marked orange. The longer word roots a language allows, the simpler syllable structure it likely has.
The “undefined” option
If your conlang is neither monosyllabic or sesquisyllabic, then it can be difficult to define its maximum root length. You can use this option if you can't or don't want to bother defining this.
A few languages defy the notion of “syllable”, e.g. Berber languages and some languages on the northwestern coast of North America. These language may have very long consonant clusters, and even entirely vowelless words. If your conlang is of this type, then you may choose this option for both columns.
Suggested grammar sections: Introduction (of the whole conlang, the very first section), morphology, phonology, phonotactics, syllable structure.
1.2.1 Length of the complete word vs. root
Can inflections or derivational morphology make complete words in your conlang longer than the root? __________
(space to write your answer)
In Hungarian for instance, roots are monosyllabic, but words are typically way longer than that because of morphology.
Suggested grammar sections: Morphology, phonology, phonotactics, syllable structure.
1.2.2 Other notes about syllables
If there are any other things about root length in your conlang that you want to mention, you may do so below. For example, maybe your language has a general rule for root length, but this rule is broken under a specific circumstance.
If you have chosen the sesquisyllabic type, explain how this works in your conlang. Is the minor syllable the first or second, or either syllable? (In natlangs it's always the first syllable.) How are minor syllables different from full syllables? (Consider syllable structure, which phonemes may be present, tone, stress.)
Box to type in.
Suggested grammar sections: Morphology, phonology, phonotactics, syllable structure.