רוּבָּה I, (= מְרוּבָּה) more, larger number. Keth. 103ᵃ ברכת הבית בר׳ the blessing of the household increases with the number of its members (every one contributing towards the comfort of all); B. Bath. 144ᵇ; Tosef. Keth. XII, 3 מרובה (corr. acc.).