Tress is a lock of human hair, especially women's.
(noun)An example of a tress is a lock of hair from a little girl's first hair cut.
See tress in Webster's New World College Dictionary
noun
Origin: ME tresse < OFr, akin to It treccia < ? VL *trichea, a plait
See tress in American Heritage Dictionary 4
noun
Origin:
Origin: Middle English tresse
Origin: , from Old French
Origin: , perhaps from Vulgar Latin *trichia, tricia, rope, braid
Origin: , from Greek trikhiā, rope
Origin: , from thrix, trikh-, hair
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