Meaning

noun the cardinal number that is the sum of five and one

noun a playing card or domino or die whose upward face shows six pips

adjective denoting a quantity consisting of six items or units

originPIE word *swéḱs From Middle English six, from Old English six, from Proto-West Germanic *sehs, from Proto-Germanic *sehs, from Proto-Indo-European *swéḱs. Compare West Frisian seis, Dutch zes, Low German söss, sess, German sechs, Norwegian and Danish seks, also Latin sex, Ancient Greek ἕξ (héx), Sanskrit षष् (ṣaṣ). Doublet of sice. Toilet sense predates military usage.

Etymology from Wiktionary, CC BY-SA 3.0