The word "Kiehm" may present a challenge for non-native English speakers as it contains a spelling inconsistency. The correct pronunciation of this word is /kaɪm/, which suggests that the letter "h" is not necessary. However, the spelling of the word suggests otherwise. The reason for the letter "h" inclusion remains unknown, but it is likely due to historical reasons or variation in regional dialects. Despite this inconsistency, the word remains a common surname and is recognizable within English-speaking communities.