English somnolent

← French somnolent (borrowed)

← Old French sompnolent (derived)

← Proto-Indo-European *swep- (root)

← Proto-Indo-European *swépnos (derived)

← Proto-Indo-European *supnós (mention)

← Proto-Indo-European *swep- (mention)

← Latin somnolentus (derived)

← Latin somnus (mention)

→ English somnambulation (mention)

→ English somnolently (suffix)

→ English insomnolent (prefix)

→ English hypersomnolent (prefix)

→ Spanish somnoliento (cognate)

→ Polish spać (mention)

→ Russian спать (mention)