With a bar over the numeral, i.e., as d, it represents five hundred thousand (500,000). Lower case form of upper case roman numeral D, a standardization of D or Ð, from tally stick markings resembling a superimposed Ɔ and ⋌, from the practice of encircling each hundredth ⋌ notch.ĭ ( lower case Roman numeral, upper case D)
In some languages and transcription systems, d may also represent other sounds, such as /t/ or /ð/. The letter d is used in the alphabets of many languages, and in several romanization systems of non-Latin scripts to represent the voiced alveolar or dental plosive ( /d/).
Modification of capital letter D, from Ancient Greek letter Δ ( D, “ Delta ” ).
