Translation

jerenuku means "Gerenuk" in English.
It's a katakanization, a loan-word.

jerenuku is normally written with katakana, as ジェレヌク.
jerenuku written with hiragana is じぇれぬく.
jerenuku does not have kanji.
Romaji je re nu ku
Katakanaジェ
Hiraganaじぇ

Orthography Notes

  • ジェ is a compound kana representing a single syllable with multiple characters.

Further Reading

Wikipedia: ジェレヌク (Gerenuk)