The spelling of "Tibbath" may seem confusing, but it can be explained through IPA phonetic transcription. This word is spelled with two "b's" because it contains a "short" vowel sound in between them - the "a" in "Tibbath" is pronounced with a short "a" sound (/æ/). This is why the word is spelled with two "b's" instead of one. While the spelling may appear unusual, it accurately represents the pronunciation of the word in English.