— sixthly , adv.
/siksth/ , adj.
1. next after the fifth; being the ordinal number for six.
2. being one of six equal parts.
n.
3. a sixth part, esp. of one ( 1 / 6 ).
4. the sixth member of a series.
5. Music.
a. a tone on the sixth degree from a given tone (counted as a first).
b. the interval between such tones.
c. the harmonic combination of such tones.
adv.
6. in the sixth place; sixthly.
[ bef. 900; SIX + -TH 2 ; r. sixt, ME sixte, OE sixta ]