North American: now usually taken as a pet form of Charles. It was originally a nickname, from an English term of endearment (as in Shakespeare's phrase ‘dearest chuck’), probably from Middle English chukken ‘to cluck’.
German: 1. from a short form of the Latin personal name Paschalis. Compare Italian Pasquale. 2. (Westphalia): topographic name for a field or meadow which was used at Easter as a playground; etymologically two sources seem to be combined: Latin pascuum ‘pasture’ and Middle Low German pāsche(n) ‘Easter’ (see Paasch).