The spelling of the surname "Delgadino" is based on the pronunciation of its three syllables: del-ga-di-no. Each syllable is pronounced separately, and the vowel sounds are as follows: /ɛ/ in "del," /a/ in "ga," /i/ in "di," and /o/ in "no." The consonant sounds are equally important: /d/ in "del," /ɡ/ in "ga," /d/ in "di," and /n/ in "no." To correctly spell "Delgadino," it is essential to pay attention to these phonemes and their respective positions within the word.