cohob

‖ cohob Obs. Med.

Also cohoph.

[Origin uncertain: it may be the root of next word, or merely a contraction of cohobation.

An Arabic derivation is suspected. There is a Semitic root ka‭ﻋab, which has in Ethiopic the sense ‘second’, with a deriv. vb. ‘to double, repeat’; this may have occurred in a vulgar Arabic dialect. The suggestion in Littré, of Arabic kuhbat ‘dust colour mixed with black’ does not explain the sense.]

‘A Paracelsian term, intended to mean repetition; thus medicines given according to cohob, signified that they were administered with unchanging perseverance’ (Mayne Expos. Lex. 1850–60).