usual (adj.)

late 14c., from Old French usuel "current, in currency (of money), valid" (13c.) and directly from Late Latin usualis "ordinary," from Latin usus "custom" (see use (v.)). The usual suspects is from a line delivered by Claude Rains (as a French police inspector) in "Casablanca" (1942).

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Definitions of usual from WordNet

usual (adj.)
occurring or encountered or experienced or observed frequently or in accordance with regular practice or procedure;
the child's usual bedtime
came at the usual time
grew the usual vegetables
the usual summer heat
usual (adj.)
commonly encountered;
the usual greeting
Synonyms: common