Match each classical root on the left with its precise morphological meaning on the right.

luc- / lum-light or clarity
somn-sleep or slumber
tac- / tacit-silent or unspoken
plac-please, soothe, or calm

Answer

The correct pairings match 'luc- / lum-' with 'light or clarity', 'somn-' with 'sleep or slumber', 'tac- / tacit-' with 'silent or unspoken', and 'plac-' with 'please, soothe, or calm'.

Each root word correctly maps to its authentic Latin etymological meaning: 'luc-/lum-' denotes light or clarity, 'somn-' denotes sleep, 'tac-/tacit-' denotes silence, and 'plac-' denotes pleasing or soothing.

Step-by-Step Solution

Analyze the classical root 'luc- / lum-'

Connect with English words such as 'lucid' and 'illuminate'.

The core Latin root 'lux/lucis' denotes light and mental clarity.

Analyze the classical root 'somn-'

Connect with English words such as 'insomnia' and 'somnolent'.

The Latin root 'somnus' translates directly to sleep.

Analyze the classical root 'tac- / tacit-'

Connect with English words such as 'tacit' and 'taciturn'.

The Latin verb 'tacere' signifies being quiet or unspoken.

Analyze the classical root 'plac-'

Connect with English words such as 'placate', 'placid', and 'implacable'.

The Latin root 'placare' signifies appeasing, soothing, or calming.

Key Concept

Root Word Etymology and Morphological Meaning in Lexis

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