Crossword Dictionary
batter
clobber, baste, batter - v
strike violently and repeatedly; "She clobbered the man who tried to attack her"
To batter is to beat repeatedly, as if one boxer were clobbering another with blows.
Batter is one of those words with many meanings that seem entirely unrelated to each other. You can batter by hitting again and again, but there's also a batter in baseball — the guy who's holding a bat and waiting for the pitcher to throw the ball. Yet another meaning is the batter you mix up when you're making muffins, using eggs, flour, milk, and sugar. They all come from the same Latin root word, battuere, "to beat or strike."
etymology
"strike repeatedly, beat violently and rapidly," early 14c., from Old French batre "to beat, strike" (11c., Modern French battre "to beat, to strike"), from Latin battuere, batuere "to beat, strike," a rare word in literary Latin but evidently an old one and popular in Vulgar Latin. It is said to be probably borrowed from Gaulish (compare Welsh bathu "beat," Irish and Gaelic bat, bata "staff, cudgel") and to be perhaps from PIE root *bhau- "to strike." (source also of Welsh bathu "beat;" Old English beadu "battle," beatan "to beat," bytl "hammer, mallet").