BLOTCH
blotch, splodge, splotch
(noun) an irregularly shaped spot
mottle, streak, blotch
(verb) mark with spots or blotches of different color or shades of color as if stained
Source: WordNet® 3.1
Etymology
Noun
blotch (plural blotches)
An uneven patch of color or discoloration.
An irregularly shaped area.
(figuratively) Imperfection; blemish on one’s reputation, stain.
Any of various crop diseases that cause the plant to form spots.
A bright or dark spot on old film caused by dirt and loss of the gelatin covering the film, due to age and poor film quality.
A dark spot on the skin; a pustule.
Verb
blotch (third-person singular simple present blotches, present participle blotching, simple past and past participle blotched)
(transitive) To mark with blotches.
(intransitive) To develop blotches, to become blotchy.
Source: Wiktionary
Blotch, n. Etym: [Cf. OE. blacche in blacchepot blacking pot, akin to
black, as bleach is akin to bleak. See Black, a., or cf. Blot a
spot.]
1. A blot or spot, as of color or of ink; especially a large or
irregular spot. Also Fig.; as, a moral blotch.
Spots and blotches . . . some red, others yellow. Harvey.
2. (Med.)
Definition: A large pustule, or a coarse eruption.
Foul scurf and blotches him defile. Thomson.
Source: Webster’s Unabridged Dictionary 1913 Edition