14 baby names with a similar sound and feel to Halcyon.
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"rival, striving to excel"
"strong, manly"
"Blind; sixth; associated with Saint Cecilia, patron saint of musicians"
"brave, strong"
"Possibly invented American name; associated with leadership"
"brave and strong"
"rejuvenation, pleasure"
"oath"
"elf counsel, wise counsel"
"noble and sea"
"modern coinage with melodic -nell suffix"
"bright, shining (via Bertha root)"
"ornament, adornment, beauty"
"life, wished for child"