Obs. [f. WARP sb. + FAT sb.1] ? = warping-fat, -trough (WARPING vbl. sb. 10 c).
The OE. word glosses calathus, which should mean either basket generally (cf. Vimen, wearp, Corpus Glossary) or basket for thread. The rendering alueolus in the Cath. Angl. app. means a trough.
c. 1000. Ælfric, Voc., in Wr.-Wülcker, 152/21. Calathus, wearpfæt.
1483. Cath. Angl., 409/1. A Warpe fatte, alueolus.