The Collaborative International Dictionary
Syllabifying
Syllabify \Syl*lab"i*fy\, v. t. [imp. & p. p. Syllabified; p. pr. & vb. n. Syllabifying.] [L. syllaba syllable + -fy.] To form or divide into syllables.
Wiktionary
syllabifying
vb. (present participle of syllabify English)