"Laggest" is not a correct spelling. It seems to derive from "lag", meaning "to fall behind", but the correct form of the comparative adjective is "larger". In IPA phonetic transcription, "lag" is transcribed as /læɡ/, and "larger" is transcribed as /ˈlɑːrdʒər/. The vowel sound changes from the shorter /æ/ in "lag" to the longer /ɑː/ in "larger", which is typical of comparative forms. It is important to use correct spelling and pronunciation to avoid confusion and misunderstandings.