The spelling of the sound "ng" can be tricky because it is a combination of two sounds - the nasal consonant "n" and the velar consonant "g". The International Phonetic Alphabet (IPA) transcription for this sound is [ŋ]. It is commonly found in words such as "sing", "king", and "bang". The letter combination "ng" is almost always used to represent this sound, but there are exceptions like in words like "hinger" where it is "ngh". Practice and familiarity with these exceptions can help improve spelling accuracy.
The word "ng" is not a word with an etymology. Instead, it is a phoneme known as an "engma". The engma (ŋ) is a nasal consonant typically used in spoken languages to represent the sound found at the end of words such as "sing" or "song". It is called "ng" because it is the combination of the letters 'n' and 'g', which produce the ŋ sound. The term "engma" is derived from the Greek letter "gamma" (γ), which also represents the sound ŋ in its uppercase form.