saucer for a teacup
Specifically a small saucer for a Japanese teacup (yunomi). The reading たくし is also used. Compare with 茶托 (chataku), which is more common.
See also: 茶托
I placed the teacup on a saucer and served it to the guest.
Compound of 托 (taku, 'support') and 子 (su, 'small object'). The exact historical derivation is uncertain.