A double rho in the middle of a word was originally written with smooth breathing on the first rho and rough breathing on the second one ( ???????? ).
12.
If a rho was geminated within a word, the first always had the smooth breathing and the second the rough breathing ( ?? ) leading to the transiliteration rrh.
13.
By the time their use became conventional and obligatory in Greek writing, in late antiquity, pitch accent was evolving into a single smooth breathing ( } } ), marking its absence.
14.
:The earliest copy of Commons : Image : Wikipedia-logo-en . png appears to have these marks already ( the smooth breathing by the talk ) 22 : 02, 18 November 2007 ( UTC)
15.
In chemistry, the letter H as symbol of enthalpy sometimes is said to be a Greek eta, but since enthalpy comes from ???????, which begins in a smooth breathing and epsilon, it is more likely a Latin H for'heat '.
16.
Modern Church Slavonic orthography uses the smooth breathing sign ( Greek and Church Slavonic : " psili ", Latin : " spiritus lenis " ) above the initial vowels ( just for tradition, as there is no difference in pronunciation ).
17.
The smooth breathing ( ) is written as on top of one initial vowel, on top of the second vowel of a diphthong or to the left of a capital and also, in certain editions, on the first of a pair of rhos.
18.
A sign similar to a smooth breathing, called a coronis, is used to show when two words have joined together by a process called crasis ( " mixing " ), e . g . ( ) " I too ", contracted from ( ).