ربّعهُ
1.
, verbal noun تَرْبِيعٌ, He made it four. (EshSheybánee, K voce وَحَّدَهُ.)
2.
3.
فُلَانٌ
يُثَلِّثُ وَلَا يُرَبَبّعُ
Such a one counts three Khaleefehs, [namely, Aboo-Bekr and 'Omar and 'Othmán,] and [does not count a fourth, i. e.,] rejects [' Alee,] the fourth. (TA in article ثلث.)
4.
رَبَّعَتْ
She brought forth her fourth offspring. (TA in article بكر.)
5.
ربّع لِامْرَأَتِهِ, or عِنْدَهَا, He remained four nights with his wife: and in like manner the verb is used in relation to any saying or action. (TA voce سَبَّعَ.)
6.
تَرْبِيعٌ also signifies [The watering of seed-produce on the fourth day, counting the day of the next preceding watering as the first;] the watering of seed-produce that is [next] after the
تَثْلِيث. (TA.) [You say, ربّع الزَّرْعَ
He watered the seed-produce on the fourth day, &c.]