Allhallows[obs3], Allhallowmas[obs3], All Saints’ Day; All Souls’, All
Souls’ Day; Ash Wednesday, bicentennial, birthday, bissextile[obs3], Candlemas[obs3], Dewali, groundhog day [U.S.], Halloween, Hallowmas[obs3], Lady day, leap year, Midsummer day, Muharram, woodchuck day [U.S.], St. Swithin’s day, natal day; yearbook; yuletide.
     punctuality, regularity, steadiness. 
     V. recur in regular order, recur in regular succession; return,
revolve; come again, come in its turn; come round, come round again; beat, pulsate; alternate; intermit. 
     Adj. periodic, periodical; serial, recurrent, cyclical, rhythmical;
recurring &c. v.; intermittent, remittent; alternate, every other.
     hourly; diurnal, daily; quotidian, tertian, weekly; hebdomadal|,
hebdomadary|; biweekly, fortnightly; bimonthly; catamenial|; monthly, menstrual; yearly, annual; biennial, triennial, &c.; centennial, secular; paschal, lenten, &c.
     regular, steady, punctual, regular as clockwork. 
     Adv. periodically &c. adj.; at regular intervals, at stated times; at
fixed established, at established periods; punctually &c. adj. de die in diem[Lat]; from day to day, day by day.
     by turns; in turn, in rotation; alternately, every other day, off and
on, ride and tie, round and round.

     #139.  Irregularity of recurrence. —­ N. irregularity, uncertainty,
unpunctuality; fitfulness &c. adj.; capriciousness, ecrhythmus|. 
     Adj. irregular, uncertain, unpunctual, capricious, desultory, fitful,
flickering; rambling, rhapsodical; spasmodic; immethodical[obs3], unmethodical, variable. 
     Adv. irregularly &c. adj.; by fits and starts &c. (discontinuously)
70.

% Section VII.  Change

1.  Simple change %

     #140. [Difference at different times.] Change. —­ N. change,
alteration, mutation, permutation, variation, modification, modulation, inflexion, mood, qualification, innovation, metastasis, deviation, turn, evolution, revolution; diversion; break.
     transformation, transfiguration; metamorphosis; transmutation;
deoxidization[Chem]; transubstantiation; mutagenesis[Genet], transanimation[obs3], transmigration, metempsychosis|; avatar; alterative.
     conversion &c. (gradual change) 144; revolution &c. (sudden or radical
change) 146 inversion &c. (reversal) 218; displacement &c. 185; transference &c. 270.
     changeableness &c. 149; tergiversation &c. (change of mind)
607. 
     V. change, alter, vary, wax and wane; modulate, diversify, qualify,
tamper with; turn, shift, veer, tack, chop, shuffle, swerve, warp, deviate, turn aside, evert, intervert[obs3]; pass to, take a turn, turn the corner, resume.
     work a change, modify, vamp, superinduce; transform, transfigure,
transmute, transmogrify, transume[obs3]; metamorphose, ring the changes.
     innovate, introduce new blood, shuffle the cards; give a turn to, give