sixty

From Middle English sixty, sexty, Old English sixtiġ, from Proto-Germanic *sehs tigiwiz (“sixty”), equivalent to six +‎ -ty. Cognate with Scots sexty, saxty (“sixty”), Saterland Frisian säkstich (“sixty”), West Frisian sechstich (“sixty”), Dutch zestig (“sixty”), German Low German sesstig (“sixty”), German sechzig (“sixty”), Swedish sextio (“sixty”), Norwegian seksti (“sixty”), Icelandic sextíu (“sixty”). Compare also Sanskrit षष्टि (ṣaṣṭi).

• (Received Pronunciation) IPA^(key): /ˈsɪkstɪ/
• (General American) enPR: sĭksʹtē, IPA^(key): /ˈsɪksti/

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• Rhymes: -ɪkstɪ, -ɪksti
• Hyphenation: six‧ty

sixty

1. The cardinal number occurring after fifty-nine and before sixty-one, represented in Roman numerals as LX and in Arabic numerals as 60.

• Arabic numerals: 60
• Roman numerals: LX

• Previous: fifty-nine, fifty
• Next: sixty-one, seventy
• sexagesimal

• xysti

• cexty, sexti, sexty, sixti, syxty, zixti
• (early) sextiȝ, sixtiȝ

From Old English sixtiġ, from Proto-Germanic *sehs tigiwiz; equivalent to six +‎ -ty.

• IPA^(key): /ˈsikstiː/, /ˈsɛkstiː/

sixty

1. sixty

• English: sixty
• Scots: sexty, saxty

• “sixtī, num.”, in MED Online, Ann Arbor, Mich.: University of Michigan, 2007.