eminent, table, desk, high
卓 centers on standing out above others: being eminent or high in quality. The table/desk sense is a concrete application of a raised, prominent surface.
卓 is thought to combine ⺊ (a divination symbol) with 早 (early), but the exact historical development is uncertain. The character has long been associated with the idea of something tall or outstanding.
The top ⺊ looks like a mark of excellence, and 早 suggests being early or ahead. Picture a tall, eminent desk that stands above all others.
For タク, imagine an eminent person sitting at a desk covered with tacks: tack -> タク, and the desk is so high that the tacks stand out.
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table tennis; ping-pong
table; desk
dining table
calculator (electronic); pocket calculator
preeminence; excellence; superiority; transcendence
desktop; desk-top; tabletop
round table
excellence; superiority; preeminence; prevalence
programmable calculator
round-table conference; roundtable; round-table; round-table meeting
(operator) console
to have a meal together; to sit at table
desktop publishing; DTP
desktop computer
after-dinner speech; speech made at a dinner (luncheon)
desk-top calculator
tabletop game
desk phone
excellence; superiority; preeminence; prevalence
great efficiency