Desmond sits next to 4 phonetic neighbors — Raymond, Edmund, and Hammond are the closest matches by sound. Most share Desmond's Irish-rooted cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"man from South Munster"
"long narrow hill"
"title of honor, great one"
"praised, thankful"
"to tame, to subdue"
"son of the young warrior"
"clearing of coarse grass"
"one who is learned"
"consecrated to Mars"
"like the sun"
"alert, watchful, vigilant"
"mill worker, grain grinder"
"ever powerful"
"bold power, chief ruler"
"protector of men"
"rowan tree (mountain ash)"
"small, humble"
"son of Lawrence"
"from the bridges"
"to hold fast, to restrain"
Similar sound: These names share phonetic patterns with Desmond — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Irish Gaelic origins, giving them the same cultural heritage as Desmond.
Rhythm: Desmond is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.