This is not a common word in conversation.
sik·háy
Etymology: The word sikháy is reportedly Chinese in origin.
The more common Tagalog synonym is sipag.
KAHULUGAN SA TAGALOG
sikháy: sikap
magsikháy, sikhayín
Mga kasingkahulugan ng salitang sikhay:
sikap, sipag, sigla, siyasig, sigasig