As nouns the difference between terms and pistick
is that terms is while pistick is (obsolete) a pistachio nut (also used attributively).
terms
English
Noun
(head)
Statistics
*
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pistick
English
Noun
(
en noun)
(obsolete) A pistachio nut (also used attributively).
*, II.ii.1.1:
*:Trallianus discommends figs, Salvianus olives and capers, which others especially like of, and so of pistick nuts.