Where does “sínigh” come from?

sínigh (Irish) comes from Irish sín, from Latin Sīnae, from Ancient Greek Σῖναι, from Arabic صِين, from Pahlavi čīn, from Sanskrit चीन, from Old Chinese 秦 — {{w|Qin |State of Qin}}, {{w|Qin dynasty}}; Qin.

sínigh (Irish): to sign put one's signature to (e.g., a letter or contract)

Definitions

to sign put one's signature to (e.g., a letter or contract)

Ancestry of “sínigh”, step by step

Step	Language	Word	Meaning
1	Irish	sín	to stretch, extend; to pass; to lengthen
2	Latin	Sīnae	the Chinese, specifically
3	Ancient Greek	Σῖναι	the southern Chinese
4	Arabic	صِين	—
5	Pahlavi	čīn	—
6	Sanskrit	चीन	the Chinese people; China; a bandage for the...
7	Old Chinese	秦	{{w\|Qin \|State of Qin}}, {{w\|Qin dynasty}}; Qin

Every word from Old Chinese 秦 →