The “Deepholm” EU realm is spelled “Deephome” in some locales, which seems like a typo.
https://eu.api.blizzard.com/data/wow/realm/deepholm?namespace=dynamic-eu
"name": {
"en_US": "Deepholm",
"es_MX": "Deephome",
"pt_BR": "Подземье",
"de_DE": "Deephome",
"en_GB": "Deepholm",
"es_ES": "Deephome",
"fr_FR": "Deepholm",
"it_IT": "Подземье",
"ru_RU": "Подземье",
"ko_KR": "Deepholm",
"zh_TW": "Deephome",
"zh_CN": "深渊之巢"
},