Where does “przeciwległy” come from?

przeciwległy (Polish) comes from Polish lec, from Old Polish lec, from Proto-Slavic leťi, from Proto-Balto-Slavic legtei, from Indo-European *légʰeti, from Indo-European legʰ-.

przeciwległy (Polish): opposite

Definitions

opposite

Ancestry of “przeciwległy”, step by step

Step	Language	Word	Meaning
1	Polish	lec	to fall; to lie down
2	Old Polish	lec	—
3	Proto-Slavic	leťi	to lie, lie down
4	Proto-Balto-Slavic	legtei	to lie (be in a resting position), lie down
5	Indo-European	*légʰeti	—
6	Indo-European	legʰ-	—

Every word from Indo-European legʰ- →Every word from Indo-European *légʰeti →Every word from Proto-Balto-Slavic legtei →