Gulp
Middle English: probably from Middle Dutch gulpen, of imitative origin.
wiktionary
From Middle English gulpen, probably from West Flemish or Middle Dutch gulpen, golpen, probably of imitative origin.
Related to West Frisian gjalpe, gjalpje, gjealpje(“to gush, spurt forth”), Danish gulpe, gylpe(“to gulp up, disgorge”), dialectal Swedish glapa(“to gulp down”), Old English gealpettan(“to gulp down, eat greedily, devour”). More at galp.
etymonline
gulp (v.)
late 14c., a native coinage or else from Flemish gulpe or Dutch gulpen "to gush, pour forth, guzzle, swallow," in any case possibly of imitative origin (compare Swedish dialectal glapa "to gulp down"). Related: Gulped; gulping.
gulp (n.)
1560s, from gulp (v.), or else from Flemish gulpe, Dutch gulp "stream of water, large draught."
