Deirde sits next to 4 phonetic neighbors — Deirdre, Dierdre, and Deidre are the closest matches by sound. Most share Deirde's Irish-rooted cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"sorrowful one; broken-hearted"
"mother"
"Meadow; from Norwegian engel (angel) or eng (meadow, pasture)"
"yew tree"
"violet flower (Yolanda influence)"
"delicate sheer fabric"
"Mary: beloved, wished-for child (Hebrew); Kathryn: pure, clear (Greek)"
"upholder of good, who holds firm the good"
"noble (from Henriette/Henri)"
"dark complexion"
"friend, fair one"
"dear Marie, beloved sea"
"Americas iconic sports car (modern usage)"
"new day, day's glory"
"beauty, handsomeness"
Similar sound: These names share phonetic patterns with Deirde — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Irish origins, giving them the same cultural heritage as Deirde.
Rhythm: Deirde is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.