The Adjective-to-Adverb Derivation Suffix چە
سۈپەتتىن رەۋىش ياسايدىغان «چە» ئارقا قوشۇمچىسى
In addition to being added to ethnic nouns to create adverbs meaning "in the style of", a similar meaning may be achieved when چە is added to certain adjectives, with the resulting meaning of "in a [adjective] manner".
The standard vowel-reduction rules apply when adding this suffix - i.e., if the word ends in an ئا or ئە vowel, this reduces to an ئى (provided that it is not a long vowel).
See also: 4.3.2, 4.6.1, 4.7.1, 4.8.1