What does Boxing Day have to do with boxing?
"large and thriving," 1560s, past participle adjective from chop (v.). Cf. strapping, whopping in similar sense.
chopping. An epithet frequently applied to infants, by way of ludicrous commendation: imagined by Skinner to signify lusty, from cas Sax. by others to mean a child that would bring money at a market. Perhaps a greedy, hungry child, likely to live. [Johnson]
"to cut with a quick blow," mid-14c., of uncertain origin, perhaps from Old North French choper (Old French coper "to cut, cut off," 12c., Modern French couper), from Vulgar Latin *cuppare "to behead," from a root meaning "head," but influenced in Old French by couper "to strike." Related: Chopped; chopping.
"shift quickly," 1530s, earlier "to bargain" (early 15c.), ultimately from Old English ceapian "to bargain" (see cheap); here with a sense of "changing back and forth," probably from common expressions such as to chop and change "barter." To chop logic is recorded from 1570s. Related: Chopped; chopping.
"act of chopping," mid-14c., from chop (v.1). Meaning "piece cut off" is mid-15c.; specifically "slice of meat" from mid-17c. Sense of "a blow, strike" is from 1550s.
[1823+; fr Hindi, ''seal'']