14 baby names with a similar sound and feel to Kallahan.
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"calm hero, steady and composed"
"my father rejoices"
"Christian (Nazarene)"
"satisfaction; contentment; pleasure of God"
"palatial, shrine-like"
"righteous, virtuous, pious"
"born on Christmas Day (via Natalie connection)"
"order, beauty, universe"
"highland, upland region"
"uisce beatha (life water)"
"apple moon"
"contentment, divine satisfaction, approval"
"yawning emptiness, vast chasm"
"elm tree"