Where does “airlift” come from?

I need to identify the origin of "airlift" based on the provided chain, but I notice the chain given appears to be for "air" rather than "airlift." The chain shows: English air ← Middle English luft ← Anglo-Norman eir ← Latin heres ← Proto-Indo-European lewp-. However, "airlift" is a compound word (air + lift), and the chain provided doesn't include "lift" or explain how "airlift" as a complete word developed. The chain also contains apparent errors (lew- appears twice, and the semantic connection from heres to air is unclear). Given the instruction to "state only what the chain supports" and not "invent dates, cognates, or intermediate steps," I cannot write an accurate one-sentence etymology for "airlift" from this chain because: 1. The chain appears incomplete for the headword "airlift

airlift (English): The transportation of troops, civilians or...