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== Radestrian ==

=== Etymology ===
{{coined|rad}} in the 1960s to resolve the dilemma of the extant prefix {{m|rad|lenire·|t=kilo-}} already having the symbol {{m|rad|l}}. While ''L'' was not used as a symbol, the ''giga-'' and ''nano-'' pair were given the same letters in their respective case for consistency, via an additional stroke to the base letter, i.e. ''Ł'' and ''ł''. These developed in written form to ''X'' and ''x'', ultimately favoured for their disposition in the Radestrian alphabet and, also relevantly, keyboard layout. This development is comparable to the simultaneously coined symbols for {{m|rad|aenire·|t=tera-}} and {{m|rad|aenirje·|t=pico-}}, {{m|rad|Y}} and {{m|rad|y}}, which developed from an original ''Ⱥ'' and ''ⱥ''. See {{m|rad|Y}} for the full development.

An identical approach was taken for the recently coined symbol for {{m|rad|lienire·|t=zetta-}} and {{m|rad|lienirje·|t=zepto-}}, resulting in {{m|rad|Ł}} and {{m|rad|ł}}, respectively, which have since been standardised. Therefore, as a symbol, {{m|rad|X}} is a {{doublet|rad|Ł|nocap=1}}.

=== Symbol ===
{{head|rad|symbol}}
# {{form of|rad|lirenire·|abbreviation|t=giga-|pos={{SI}} prefix}}; {{eng|G}}
#: {{ex|rad|*X*R (*lirenire·*rvía)|*G*B (*giga*byte)}}

==== Related terms ====
{{columns|rad
|Ł<t:zetta->
|ł<t:zepto->
|x<t:nano->
}}