HEBREW / ARAMAIC · H5427
נֶ֫תֶר
ne.ter — lye
natron, nitre, soda, carbonate of soda
2 tagged verse occurrences · see every occurrence →BIBLE DICTIONARY + WORD STUDY
How to read this: there is rarely one magic “true meaning” hidden behind an English word. A lexicon records a word’s semantic range. The intended meaning is narrowed by grammar, sentence, author, historical usage and context.
HEBREW / ARAMAIC · H5427
ne.ter — lye
natron, nitre, soda, carbonate of soda
2 tagged verse occurrences · see every occurrence →(Prov. 25:20; R.V. marg., “soda”), properly “natron,” a substance so called because, rising from the bottom of the Lake Natron in Egypt, it becomes dry and hard in the sun, and is the soda which effervesces when vinegar is poured on it. It is a carbonate of soda, not saltpetre, which the word generally denotes (Jer. 2:22; R.V. “lye”).
Source: Easton’s Bible Dictionary (1897). Historical dictionary wording reflects the scholarship and language of its era.