solmization

Concise Oxford English Dictionary © 2008 Oxford University Press:
solmization /sɒlmɪˈzeɪʃ(ə)n/ (or solmisation /ˌsɒlmɪˈzeɪʃ(ə)n/)

▶noun Music a system of associating each note of a scale with a particular syllable (typically the sequence doh, ray, me, fah, so, la, te), especially to teach singing.

– derivatives
solmizate verb.

– origin C18: from Fr. solmisation, based on sol ‘soh’ + mi (see me2).