出典:Wiktionary
Middle French schrabben (“to scrape, scratch”). Compare Old High German skaban, from Proto-Germanic *skabaną, from Proto-Indo-European *skabʰ- (“to scratch”) and compare Irish Gaelic scríobann and sgrìoban.
scrab (三人称単数 現在形 scrabs, 現在分詞 scrabbing, 過去形および過去分詞形 scrabbed)
From Middle English scrabbe, variant of crabbe (“crabapple”); ultimately of Germanic origin, plausibly from North Germanic, cognate with Swedish dialect scrabba.