lizard: [14] Lizard goes back to Latin lacertus or lacerta, words of unknown origin. It reached English via Old French lesard. The Latin word was used for ‘muscle’ as well as ‘lizard’, perhaps because the ripple of a muscle beneath the skin reminded people of a lizard’s movement (an exactly parallel development links mouse and muscle). And in heavily disguised form, owing to a detour via Arabic, alligator is the same word. => alligator
lizard (n.)
"an animal resembling a serpent, with legs added to it" [Johnson], late 14c., lusarde, from Anglo-French lusard, Old French laisarde "lizard" (Modern French lézard), from Latin lacertus (fem. lacerta) "lizard," of unknown origin, perhaps from PIE root *leq- "to bend, twist" [Klein].
例文
1. The slow-worm is in fact not a snake but a legless lizard .
ヘビトカゲは実はヘビではなく、足のないトカゲだった。
2.The lizard darted out its tongue at the insect.
トカゲが舌を出して小さな昆虫を食べに行く。
3. But, of the vertebrates, unpredictable Nature selected only snakes ( and one lizard ).
しかし、脊椎動物の中では、神秘的な自然は蛇（とトカゲ）だけを選んだ。＜／
4.Confident in its camouflage，being the same colour as the rocks，the lizard stands still when it feels danger.
岩石の色と同じようにトカゲは自分の保護色に自信を持っている、危険に遭遇すると、動かなくなります。
5.In the lizard ，a muscular septum partially divides the ventricle.