Seasonal
来自Big Physics
Middle English: from Old French seson, from Latin satio(n- ) ‘sowing’, later ‘time of sowing’, from the root of serere ‘to sow’.
wiktionary
season + -al
etymonline
seasonal (adj.)
"pertaining to the seasons; relating to a season," 1829, from season (n.) + -al (1). Of workers or employment, from 1904. Related: Seasonally.
