7 letters · 9 points in Scrabble
noun an instance of driving away or warding off
verb force or drive back
verb be repellent to; cause aversion in
originBorrowed from Latin repulsus, from repellere (“to drive back”), from re- (“back”) + pellere (“to drive”). For spelling, as in pulse, the -e (on -lse) is so the end is pronounced /ls/, rather than /lz/ as in pulls, and does not change the vowel (‘u’). Compare else, false, convulse.
Etymology from Wiktionary, CC BY-SA 3.0