Unicode uses the (Modern Greek-based) spelling "lamda" in character names, instead of "lambda", due to "the pre-existing names in ISO 8859-7, as well as preferences expressed by the Greek National Body".
https://en.wikipedia.org/wiki/Lambda#Character_encodings
codespell/codespell_lib/data/dictionary.txt
Line 22488 in 0f5c8fd
Unicode uses the (Modern Greek-based) spelling "lamda" in character names, instead of "lambda", due to "the pre-existing names in ISO 8859-7, as well as preferences expressed by the Greek National Body".
https://en.wikipedia.org/wiki/Lambda#Character_encodings