Enquiry vs. Inquiry
Main DifferenceEnquiry and Inquiry are used interchangeably but have difference among them. Enquiry is used to get some information, in a formal way of asking. While Inquiry is used for investigation, which is a deeper word than enquiry. Enquiry is the noun of enquire used commonly in British English. Inquiry is the noun of inquire used in US English. Both words are taken from Old French "enquerre". If there is some accident somewhere, police may enquire about the place of incident and will inquire about the reason behind the incident.

Difference Between Enquiry and Inquiry
Enquiry vs. Inquiry
Enquiry is used to get some information, in a formal way of asking while inquiry refers to the investigation.
Enquiry vs. Inquiry
Enquiry is commonly used in British English while inquiry is used in US English.
Enquiry vs. Inquiry
If there is some accident somewhere, police may enquire about the place of incident and will inquire about the reason behind the incident.
Enquiry vs. Inquiry
If someone need a pencil, he will enquire his neighbor about pencil. If the pencil is lost then he will inquire about the pencil.
Enquiry vs. Inquiry
Enquiry is just a simply getting information but inquiry is the detailed analysis and investigation.
Enquirynoun
A question.
Inquirynoun
The act of inquiring; a seeking of information by asking questions; interrogation; a question or questioning.
Enquirynoun
Search for truth, information or knowledge.
scientific enquiryInquirynoun
Search for truth, information, or knowledge; examination of facts or principles; research; investigation
Scientific inquiryEnquirynoun
an instance of questioning;
there was a question about my trainingwe made inquiries of all those who were presentInquirynoun
a search for knowledge;
their pottery deserves more research than it has receivedEnquirynoun
a search for knowledge;
their pottery deserves more research than it has receivedInquirynoun
an instance of questioning;
there was a question about my trainingwe made inquiries of all those who were presentEnquirynoun
a systematic investigation of a matter of public interest
Inquirynoun
a systematic investigation of a matter of public interest
What is Enquiry?
Enquiry is used to get some information, in a formal way of asking. It donates the questioning. Enquiry is the noun of enquire used commonly in British English. We may enquired about the menu when we are in the hotel.
What is Inquiry?
Inquiry refers to the investigation and to find out for the things. Inquiry is the noun of inquire used in US English. Judge may suspend the Inquiry (investigation) of any incident.