105. Most adverbs of manner were formed by adding -men (-ment, -mens,
or -menz) to the feminine singular of the adjective: belamen. These
adverbs were originally ablative phrases: _serēna mĕnte_, etc. In
Provençal the specific meaning of the -men was forgotten, but the two
parts might still be separated by an intervening word: ẹpsa… ment.
When two adverbs in -men were used together, the ending was generally
affixed to only one, oftener the first. Bona and mala could be used as
adverbs without the suffix.