HOMOPHONOUS
homophonous
(adjective) characteristic of the phenomenon of words of different origins that are pronounced the same way; “‘horse’ and ‘hoarse’ are homophonous words”
Source: WordNet® 3.1
Adjective
homophonous (not comparable)
(phonetics) Having the same pronunciation.
(music) Homophonic; sounding the same.
Source: Wiktionary
Ho`mo*phon"ic, Ho*moph"o*nous, a. Etym: [Gr. homophone.]
1. (Mus.)
(a) Originally, sounding alike; of the same pitch; unisonous;
monodic.
(b) Now used for plain harmony, note against note, as opposed to
polyphonic harmony, in which the several parts move independently,
each with its own melody.
2. Expressing the same sound by a different combination of letters;
as, bay and bey.
Source: Webster’s Unabridged Dictionary 1913 Edition