The spelling of the word "Lainhart" can be explained using the International Phonetic Alphabet (IPA). It would be transcribed as /leɪnhɑːrt/. The first syllable is pronounced as "lay" with a long a sound, while the second syllable is pronounced as "n-hart" with the stress on the first syllable. The "n" is followed by a silent "h" which is commonly found in some English words. Overall, the spelling of "Lainhart" reflects its pronunciation in English.