SHARE Internal Fortran Translator. Translation utility designed for converting Fortran II to Fortran IV. The word "sift" was often used as a verb to describe converting code from one language to another. Sammet 1969, p.153.
SIFT
Meaning of SIFT in English
FOLDOC computer English dictionary. Английский словарь по компьютерам FOLDOC. 2012