Triple
来自Big Physics
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Middle English (as an adjective and adverb): from Old French, or from Latin triplus, from Greek triplous .
wiktionary
From Middle English triple (also þripell), from Latin triplus. Doublet of treble.
etymonline
triple (v.)
late 14c., from Medieval Latin triplare "to triple," from Latin triplus "threefold, triple" (see triple (adj.)). Related: Tripled; tripling.
triple (adj.)
early 15c., from Old French triple or directly from Latin triplus "threefold, triple," from tri- "three" (see tri-) + -plus "-fold" (see -plus). As a noun, early 15c., "a triple sum or quantity," from the adjective. The baseball sense of "a three-base hit" is attested from 1880. Related: Triply (adv.). Triple-decker is from 1940 of sandwiches and wedding cakes, 1942 of beds.
