#presbyopic

clod, n.:

†1. A mass formed by the coagulation of anything liquid, esp. blood. Obs. (now clot n.)

2. A coherent mass or lump of any solid matter, e.g. a clod of earth, loam, etc. (Formerly, and dialectally still sometimes, clot n.   See also cloud n. 2.)

3. a. spec. A lump of earth or clay adhering together. (Formerly clot n.)

b. As a substance, without pl.: The soil or dust of the ground in its lumpy character. Often a depreciatory term for the earth in its unpleasant associations.

Etymology:  Appears in 14th cent. as a variant of clot n.; after which the two forms were long entirely synonymous, but they have subsequently been differentiated, the typical senses being now respectively as in a clod of earth, and a clot of blood.

But Old English had already clod-hamer field-fare, and Clodhangra proper name; clod must be old in Germanic: compare Grimm, kloder , and klod , klot , cited under it. The vb. stem glu- , gleu- , in Germanic klu- , kleu- , ‘glomerare’ (see clew n.), would give a n. glu-tó-, whence Old Germanic klu-dó-, Old English clod.

—

presbyopic, adj. and n.:

A. adj.Affected with presbyopia; of or relating to presbyopia.

presbyopia, n.:

Ophthalmol.Deterioration of near vision occurring with advancing age, owing to increasing rigidity of the lens of the eye with reduction in the power of accommodation.

Etymology:  < post-classical Latin presbyopia (1756 or earlier; 1745 in post-classical Latin context as a Greek word) < ancient Greek πρέσβυς old man (see presbyter n.) + post-classical Latin -opia or its etymon ancient Greek -ωπία (see -opia comb. form). Compare earlier presbytia n.

—