Strong's Definition
from 3807; beaten, i.e. pure (oil): -beaten.
STEPBible — Tyndale Abridged Hebrew Lexicon
כָּתִית (ka.tit) — beaten. 1) beaten out, pure, pounded fine (in a mortar), costly 1a) of olive oil
UBS Dictionary of Biblical Hebrew
UBS Dictionary of Biblical Hebrew © United Bible Societies, licensed CC BY-SA 4.0.
Brown-Driver-Briggs Hebrew Lexicon
כָּתִית adj. beaten;—only in combin. beaten oil, i.e. oil made by beating or pounding the olives in a mortar; esp. fine and costly base