Meteg

Meteg (מֶתֶג)
ֽ אֲהֵבֽוּךָ
compare with comma
אֲהֵבֽוּךָ,

Meteg (or meseg or metheg, Hebrew: מֶתֶג‎, lit. 'bridle', also gaʿya גַּעְיָה‎, lit. 'bellowing', מַאֲרִיךְmaʾarikh, or מַעֲמִידmaʿamid) is a punctuation mark used in Biblical Hebrew for stress marking. It is a vertical bar placed under the affected syllable.