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Spiritus Asper




The spiritus asper ("rough breathing") or '''dasy pneuma''' (Greek: dasu, ''δασύ'') is a .

The origin of the sign is thought to be the left-hand half ( ├ ) of the letter H, which was used in some Greek dialects as an {Link without Title} while in others it was used for the vowel eta. In medieval and modern script, It is written as on top of or to the left of an initial Vowel (the second vowel of a pair comprising a diphthong), and also on an initial Rho or the second of a pair of rhos. It takes the form of an opening half moon (C) or an opening single quotation mark:

  • ;



  • .


The only situations when it can be written inside a word are :
  • on a double Rho in certain editions;

  • when it represents a Coronis resulting from a Crasis implying a vowel bearing a ''spiritus asper''.


The ''spiritus asper'' merely notes the presence of an initial consonant {Link without Title} , which cannot be written otherwise when it is not initial: thus stands for ''humnos'', "hymn", and for ''hrêtôr'' (or ''rhêtôr''), "orator".

When a word begins by an initial Grapheme which is a vowel not preceded by an {Link without Title} , the '' Spiritus Lenis '' ("soft breathing") is employed.

It is part of the traditional Polytonic Orthography for Greek, but has been dropped in the modern Monotonic Orthography as the {Link without Title} sound has disappeared from Modern Greek .

Dasea pneumata were also used in the Early Cyrillic Alphabet when writing the Old Church Slavonic language. In this context it is encoded as Unicode U+0485 or HTML entity ҅ (  ).


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