 The letter was the western form of the Greek gamma, but it was used for the sounds and alike, possibly under the influence of Etruscan, which might have lacked any voiced plosives.Later, probably during the 3rd century BC, the letter – unneeded to write Latin properly – was replaced with the new letter , a modified with a small horizontal stroke, which took its place in the alphabet.From then on, represented the voiced plosive , while was generally reserved for the voiceless plosive .