From velar + -ize.
velarize (third-person singular simple present velarizes, present participle velarizing, simple past and past participle velarized)
- (phonology) To raise the back of the tongue toward the velum while articulating another consonant, such as the l of English pool.
- (phonology) To replace a (usually more front) consonant with a velar.
In several dialects of Central German, the cluster -nd- has been velarized to -ng-.
to raise the back of the tongue toward the velum while articulating another consonant