Word Study
teache
CIDE DICTIONARY
teache, n. [Cf. Amer. Sp. tacha, tacho.].
Any one of the series of boilers or evaporating pans in which the cane juice is concentrated in making sugar; especially, the last boiler of the series. Ure. [1913 Webster]
"The 1890 edition had the following etymology for teache : [Cf. Ir. teaghaim , Gael. teasaich , to heat.] . Presumably a speculation which proved incorrect?"
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