Editing Ogonek (section)

===Lowered articulation===
Between 1927 and 1989, the ogonek denoted [[relative articulation|lowering]] in [[vowel]]s, and, since 1976, in [[consonant]]s as well, in the [[International Phonetic Alphabet]] (IPA). While the obsolete diacritic has also been identified as the [[ring (diacritic)|left half ring diacritic]] {{angbr IPA|◌̜}}, many publications of the IPA used the ogonek.<ref>{{cite journal|last=Whitley|first=M. Stanley|year=2003|title=Rhotic representation: problems and proposals|journal=Journal of the International Phonetic Association|volume=23|issue=1|pages=81–86|doi=10.1017/S0025100303001166|s2cid=145538124}} Page 84, note 2.</ref>

In [[Rheinische Dokumenta]], it marks vowels that are more open than those denoted by their base letters Ää, Oo, Öö. In two cases, it can be combined with [[Trema (diacritic)|umlaut]] marks.