ח said to be the same as ح
Heth, sometimes written Chet, but more accurately Ḥet, is the eighth letter of the Semitic abjads, including Phoenician ḥēt 𐤇 , Hebrew ḥēt ח‎, Aramaic ḥēṯ , Syriac ḥēṯ ܚ, and Arabic ḥāʾ ح.
Heth originally represented a voiceless fricative, either pharyngeal /ħ/, or  velar /x/. In Arabic, two corresponding letters were created for both phonemic sounds: unmodified ḥāʾ ح represents /ħ/, while ḫāʾ خ represents /x/.
The Phoenician letter gave rise to the Greek eta Η, Etruscan , Latin H, and Cyrillic И. While H is a consonant in the Latin alphabet, the Greek and Cyrillic equivalents represent vowel sounds, though the letter was originally a consonant in Greek and this usage later evolved into the rough breathing character.