Definition of mater lectionis
: the alphabetic signs א (\ʔ\), ה (\h\), ו (\w\), and י (\y\) in Hebrew which assist in indicating the vocalization in an originally consonantal writing system
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Origin and Etymology of mater lectionis
New Latin, literally, mother of reading; from its function of enabling a person reading aloud to give an accurate rendition of a written word
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