EO . PIE * gh-does change to h-in Latin, and there are other exceptions, but they are usually explained as dialect borrowings.
2.
However, apparent exceptions to regular change can occur due to dialect borrowing, grammatical analogy, or other causes, known and unknown and some changes are described as " sporadic ", meaning that they affect only one particular word or a few words, without any apparent regularity.
मोबाइल