Correct spelling for the English word "terribl" is [tˈɛɹɪbə͡l], [tˈɛɹɪbəl], [t_ˈɛ_ɹ_ɪ_b_əl] (IPA phonetic alphabet).
The word "terrible" evolved from the Latin word "terribilis", which originated from the verb "terrere", meaning "to frighten" or "to terrify". It can be traced back to the Proto-Indo-European root *trem-, which meant "to tremble" or "to shake with fear". Over time, "terribilis" entered Old French as "terrible", and in Middle English, it continued to develop into its current form. The word has retained its general meaning of something extremely bad, unpleasant, or causing fear, but it can also be used to express intensity or great extent in some contexts.