The spelling of the word "Schield" can be explained using the International Phonetic Alphabet (IPA). The first letter, "s", is pronounced as /s/. The "ch" combination is pronounced as /ʃ/, which makes the "sh" sound. The "ie" is pronounced as /i/, and the "l" is pronounced as /l/. Lastly, the "d" is pronounced as /d/. Putting these sounds together, the correct spelling of the word "Schield" is phonetically transcribed as /ʃiːld/.
The word "schield" derives from the Old English word "sċield", which itself can be traced back to the Proto-Germanic word "*skelduz". This Proto-Germanic term is believed to have originated from the Proto-Indo-European root "*sḱel-", meaning "to cut" or "split". The concept behind the term is related to the shield's function of protection by creating a barrier or division. Over time, it evolved into the Middle English word "sheeld", and later into the modern English word "shield".