Etruscan and Latin had /h/ as a phoneme, but almost all Romance languages lost the sound—Romanian later re-borrowed the /h/ phoneme from its neighbouring Slavic languages, and Spanish developed a secondary /h/ from F, before losing it again, and now has developed an [h] allophone of /x/ in some Spanish-speaking countries. H is also used in many spelling systems in digraphs and trigraphs, such as ch in Spanish and English /tʃ/, French and Portuguese /ʃ/ from /tʃ/, Italian /k/, German /χ/, Czech and Slovak /x/.