② Click "Other Symbols"

(3) In the pop-up dialog box, select basic Latin and enter? (Wavelength in Mathematical Symbol)

Latin (Lingua Lat: na) belongs to the Italian family of Indo-European languages, which originated from Latin (Lazio, Italy) and was used by the Roman Empire. Although Latin is generally regarded as an extinct language, a few Christian clergy and scholars can use Latin fluently. Roman Catholicism traditionally uses Latin as the language of formal meetings and liturgy. In addition, many universities in western countries offer Latin courses.